diff --git a/acs-nano.csl b/acs-nano.csl
index b6d72ad123..7e87716b46 100644
--- a/acs-nano.csl
+++ b/acs-nano.csl
@@ -13,7 +13,7 @@
     <category citation-format="numeric"/>
     <category field="chemistry"/>
     <issn>1936-0851</issn>
-    <issn>1936-086X</issn>
+    <eissn>1936-086X</eissn>
     <summary>The ACS Nano style, adapted from The American Chemical Society style with article titles</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/advances-in-complex-systems.csl b/advances-in-complex-systems.csl
index 2458822ef7..bd1d2e0376 100644
--- a/advances-in-complex-systems.csl
+++ b/advances-in-complex-systems.csl
@@ -11,7 +11,7 @@
     </author>
     <category citation-format="numeric"/>
     <issn>0219-5259</issn>
-    <issn>1793-6802</issn>
+    <eissn>1793-6802</eissn>
     <updated>2012-09-09T21:58:08+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/aids.csl b/aids.csl
index 789d5a5f1b..09a9792dd3 100644
--- a/aids.csl
+++ b/aids.csl
@@ -19,7 +19,7 @@
     <category citation-format="numeric"/>
     <category field="medicine"/>
     <issn>0269-9370</issn>
-    <issn>1473-5571</issn>
+    <eissn>1473-5571</eissn>
     <summary>Vancouver style adapted for AIDS</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/american-journal-of-archaeology.csl b/american-journal-of-archaeology.csl
index b13dbbe743..9fa2eb7700 100644
--- a/american-journal-of-archaeology.csl
+++ b/american-journal-of-archaeology.csl
@@ -12,7 +12,7 @@
     <category citation-format="author-date"/>
     <category field="anthropology"/>
     <issn>0002-9114</issn>
-    <issn>1939-828X</issn>
+    <eissn>1939-828X</eissn>
     <summary>The American Journal of Archaeology style</summary>
     <updated>2012-10-25T21:15:26+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/american-journal-of-botany.csl b/american-journal-of-botany.csl
index 57ebf2fa73..a66f28ce92 100644
--- a/american-journal-of-botany.csl
+++ b/american-journal-of-botany.csl
@@ -15,7 +15,7 @@
     <category field="botany"/>
     <category field="science"/>
     <issn>0002-9122</issn>
-    <issn>1537-2197</issn>
+    <eissn>1537-2197</eissn>
     <summary>American Journal of Botany author-date style</summary>
     <updated>2013-03-15T17:29:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/american-journal-of-epidemiology.csl b/american-journal-of-epidemiology.csl
index c3ecdb5b2b..7e41bff080 100644
--- a/american-journal-of-epidemiology.csl
+++ b/american-journal-of-epidemiology.csl
@@ -12,7 +12,7 @@
     <category citation-format="numeric"/>
     <category field="medicine"/>
     <issn>0002-9262</issn>
-    <issn>1476-6256</issn>
+    <eissn>1476-6256</eissn>
     <summary>Style for the Oxford Press Journal AJE based on Vancouver.</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/american-journal-of-political-science.csl b/american-journal-of-political-science.csl
index afee3169dc..c4e07a3757 100644
--- a/american-journal-of-political-science.csl
+++ b/american-journal-of-political-science.csl
@@ -16,7 +16,7 @@
     <category citation-format="author-date"/>
     <category field="political_science"/>
     <issn>0092-5853</issn>
-    <issn>1540-5907</issn>
+    <eissn>1540-5907</eissn>
     <summary>style for the AJPS Journal published by the midwest political science association, based on the APSA style</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/anesthesia-and-analgesia.csl b/anesthesia-and-analgesia.csl
index ad794e6ff5..7c1ceba7be 100644
--- a/anesthesia-and-analgesia.csl
+++ b/anesthesia-and-analgesia.csl
@@ -16,7 +16,7 @@
     <category citation-format="numeric"/>
     <category field="medicine"/>
     <issn>0003-2999</issn>
-    <issn>1526-7598</issn>
+    <eissn>1526-7598</eissn>
     <updated>2012-09-09T21:58:08+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/annals-of-biomedical-engineering.csl b/annals-of-biomedical-engineering.csl
index 3c94e642e3..64b493abef 100644
--- a/annals-of-biomedical-engineering.csl
+++ b/annals-of-biomedical-engineering.csl
@@ -16,7 +16,7 @@
     <category field="science"/>
     <category field="medicine"/>
     <issn>0090-6964</issn>
-    <issn>1573-9686</issn>
+    <eissn>1573-9686</eissn>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/annals-of-botany.csl b/annals-of-botany.csl
index 549abebf46..6ffba10022 100644
--- a/annals-of-botany.csl
+++ b/annals-of-botany.csl
@@ -12,7 +12,7 @@
     <category citation-format="author-date"/>
     <category field="biology"/>
     <issn>0305-7364</issn>
-    <issn>1095-8290</issn>
+    <eissn>1095-8290</eissn>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/antarctic-science.csl b/antarctic-science.csl
index 2fd4d558cf..0001d8dfff 100644
--- a/antarctic-science.csl
+++ b/antarctic-science.csl
@@ -12,7 +12,7 @@
     <category citation-format="author-date"/>
     <category field="geography"/>
     <issn>0954-1020</issn>
-    <issn>1365-2079</issn>
+    <eissn>1365-2079</eissn>
     <summary>Antarctic Science (Cambridge Journals)</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/antonie-van-leeuwenhoek.csl b/antonie-van-leeuwenhoek.csl
index f0777e0af7..df089f3751 100644
--- a/antonie-van-leeuwenhoek.csl
+++ b/antonie-van-leeuwenhoek.csl
@@ -16,7 +16,7 @@
     <category citation-format="author-date"/>
     <category field="biology"/>
     <issn>0003-6072</issn>
-    <issn>1572-9699</issn>
+    <eissn>1572-9699</eissn>
     <summary>Antonie van Leeuwenhoek, International Journal of General and Molecular Microbiology.</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/art-history.csl b/art-history.csl
index f5e2df4e70..28c5f28300 100644
--- a/art-history.csl
+++ b/art-history.csl
@@ -11,7 +11,7 @@
     </author>
     <category citation-format="numeric"/>
     <issn>0141-6790</issn>
-    <issn>1467-8365</issn>
+    <eissn>1467-8365</eissn>
     <summary>Art History journal style</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/asian-studies-review.csl b/asian-studies-review.csl
index b004638591..4077c50fb5 100644
--- a/asian-studies-review.csl
+++ b/asian-studies-review.csl
@@ -27,7 +27,7 @@
     <category citation-format="author-date"/>
     <category field="social_science"/>
     <issn>1035-7823</issn>
-    <issn>1467-8403</issn>
+    <eissn>1467-8403</eissn>
     <updated>2012-10-25T21:15:26+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/australian-historical-studies.csl b/australian-historical-studies.csl
index 24f2a98462..469c25195a 100644
--- a/australian-historical-studies.csl
+++ b/australian-historical-studies.csl
@@ -23,7 +23,7 @@
     </contributor>
     <category citation-format="note"/>
     <issn>1031-461X</issn>
-    <issn>1940-5049</issn>
+    <eissn>1940-5049</eissn>
     <summary>Chicago format with full notes, no bibliography and single quotes</summary>
     <updated>2012-10-25T21:15:26+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/australian-journal-of-earth-sciences.csl b/australian-journal-of-earth-sciences.csl
index 9b5d236e51..2b8090b385 100644
--- a/australian-journal-of-earth-sciences.csl
+++ b/australian-journal-of-earth-sciences.csl
@@ -9,7 +9,7 @@
     <category citation-format="author-date"/>
     <category field="geology"/>
     <issn>0812-0099</issn>
-    <issn>1440-0952</issn>
+    <eissn>1440-0952</eissn>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/australian-journal-of-grape-and-wine-research.csl b/australian-journal-of-grape-and-wine-research.csl
index a3f83c8e65..354e0369e9 100644
--- a/australian-journal-of-grape-and-wine-research.csl
+++ b/australian-journal-of-grape-and-wine-research.csl
@@ -13,7 +13,7 @@
     <category citation-format="author-date"/>
     <category field="chemistry"/>
     <issn>1322-7130</issn>
-    <issn>1755-0238</issn>
+    <eissn>1755-0238</eissn>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/avian-pathology.csl b/avian-pathology.csl
index 4e41e49313..87b3550e01 100644
--- a/avian-pathology.csl
+++ b/avian-pathology.csl
@@ -13,7 +13,7 @@
     <category field="zoology"/>
     <category field="medicine"/>
     <issn>0307-9457</issn>
-    <issn>1465-3338</issn>
+    <eissn>1465-3338</eissn>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/behavioral-ecology-and-sociobiology.csl b/behavioral-ecology-and-sociobiology.csl
index 079c31ca02..3a9fcc267e 100644
--- a/behavioral-ecology-and-sociobiology.csl
+++ b/behavioral-ecology-and-sociobiology.csl
@@ -11,7 +11,7 @@
     <category citation-format="author-date"/>
     <category field="generic-base"/>
     <issn>0340-5443</issn>
-    <issn>1432-0762</issn>
+    <eissn>1432-0762</eissn>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/biochemical-journal.csl b/biochemical-journal.csl
index ece11adcb4..4ba6b01bab 100644
--- a/biochemical-journal.csl
+++ b/biochemical-journal.csl
@@ -14,7 +14,7 @@
     <category field="biology"/>
     <category field="chemistry"/>
     <issn>0264-6021</issn>
-    <issn>1470-8728</issn>
+    <eissn>1470-8728</eissn>
     <summary>
     </summary>
     <updated>2012-09-09T21:58:08+00:00</updated>
diff --git a/biochemistry.csl b/biochemistry.csl
index 4950bcef4d..1426284435 100644
--- a/biochemistry.csl
+++ b/biochemistry.csl
@@ -12,7 +12,7 @@
     <category citation-format="numeric"/>
     <category field="biology"/>
     <issn>0006-2960</issn>
-    <issn>1520-4995</issn>
+    <eissn>1520-4995</eissn>
     <summary>A style for the ACS publication "Biochemistry"</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/bioconjugate-chemistry.csl b/bioconjugate-chemistry.csl
index d5eccbe651..2a715717bd 100644
--- a/bioconjugate-chemistry.csl
+++ b/bioconjugate-chemistry.csl
@@ -13,7 +13,7 @@
     <category field="biology"/>
     <category field="chemistry"/>
     <issn>1043-1802</issn>
-    <issn>1520-4812</issn>
+    <eissn>1520-4812</eissn>
     <summary>A style for the ACS publication "Bioconjugate Chemistry"</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/bioessays.csl b/bioessays.csl
index 25d6b48a11..3d15ff7e47 100644
--- a/bioessays.csl
+++ b/bioessays.csl
@@ -19,7 +19,7 @@
     <category citation-format="numeric"/>
     <category field="biology"/>
     <issn>0265-9247</issn>
-    <issn>1521-1878</issn>
+    <eissn>1521-1878</eissn>
     <updated>2012-09-09T21:58:08+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/bioinformatics.csl b/bioinformatics.csl
index 71325d88e6..b02b9d5dd3 100644
--- a/bioinformatics.csl
+++ b/bioinformatics.csl
@@ -15,7 +15,7 @@
     <category citation-format="author-date"/>
     <category field="biology"/>
     <issn>1367-4803</issn>
-    <issn>1460-2059</issn>
+    <eissn>1460-2059</eissn>
     <summary>The Bioinformatics Journal style.</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/biophysical-journal.csl b/biophysical-journal.csl
index 3922f62bb9..26ba035ca7 100644
--- a/biophysical-journal.csl
+++ b/biophysical-journal.csl
@@ -23,7 +23,7 @@
     <category citation-format="numeric"/>
     <category field="medicine"/>
     <issn>0006-3495</issn>
-    <issn>1542-0086</issn>
+    <eissn>1542-0086</eissn>
     <summary>Style for Biophysical Journal</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/biotropica.csl b/biotropica.csl
index 0d13d7301c..663598fbee 100644
--- a/biotropica.csl
+++ b/biotropica.csl
@@ -15,7 +15,7 @@
     <category citation-format="author-date"/>
     <category field="biology"/>
     <issn>0006-3606</issn>
-    <issn>1744-7429</issn>
+    <eissn>1744-7429</eissn>
     <summary>Biotropica author-date style</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/blood.csl b/blood.csl
index 0c731583fc..47439df37c 100644
--- a/blood.csl
+++ b/blood.csl
@@ -13,7 +13,7 @@
     <category field="biology"/>
     <category field="medicine"/>
     <issn>0006-4971</issn>
-    <issn>1528-0020</issn>
+    <eissn>1528-0020</eissn>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/bone-marrow-transplantation.csl b/bone-marrow-transplantation.csl
index d75b7fafab..7b8c4bccac 100644
--- a/bone-marrow-transplantation.csl
+++ b/bone-marrow-transplantation.csl
@@ -14,7 +14,7 @@
     <category field="biology"/>
     <category field="medicine"/>
     <issn>0268-3369</issn>
-    <issn>1476-5365</issn>
+    <eissn>1476-5365</eissn>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/brain.csl b/brain.csl
index ced7ea1957..fa064b0e5f 100644
--- a/brain.csl
+++ b/brain.csl
@@ -12,7 +12,7 @@
     <category citation-format="author-date"/>
     <category field="medicine"/>
     <issn>0006-8950</issn>
-    <issn>1460-2156</issn>
+    <eissn>1460-2156</eissn>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/briefings-in-bioinformatics.csl b/briefings-in-bioinformatics.csl
index 46b35e7862..fc05b06a00 100644
--- a/briefings-in-bioinformatics.csl
+++ b/briefings-in-bioinformatics.csl
@@ -11,7 +11,7 @@
     </author>
     <category citation-format="numeric"/>
     <issn>1467-5463</issn>
-    <issn>1477-4054</issn>
+    <eissn>1477-4054</eissn>
     <summary>The Briefings in Bioinformatics Journal style</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/british-journal-of-anaesthesia.csl b/british-journal-of-anaesthesia.csl
index 9bd54319b1..70f0060db6 100644
--- a/british-journal-of-anaesthesia.csl
+++ b/british-journal-of-anaesthesia.csl
@@ -13,8 +13,8 @@
     </author>
     <category citation-format="numeric"/>
     <category field="medicine"/>
-    <issn>1471-6771</issn>
     <issn>0007-0912</issn>
+    <eissn>1471-6771</eissn>
     <summary>Same as Vancouver, but cites in superscript with citation numbers space-separated, and only 3 first authors listed before at al.</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/british-journal-of-haematology.csl b/british-journal-of-haematology.csl
index c280c052c5..fa758a8c26 100644
--- a/british-journal-of-haematology.csl
+++ b/british-journal-of-haematology.csl
@@ -17,7 +17,7 @@
     <category citation-format="author-date"/>
     <category field="medicine"/>
     <issn>0007-1048</issn>
-    <issn>1365-2141</issn>
+    <eissn>1365-2141</eissn>
     <summary>Style for British Journal of Haematology (modified EMBO Journal Style) Formatting for books and book chapters is unclear</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/british-journal-of-political-science.csl b/british-journal-of-political-science.csl
index af67654c2e..940eb917bd 100644
--- a/british-journal-of-political-science.csl
+++ b/british-journal-of-political-science.csl
@@ -23,7 +23,7 @@
     <category citation-format="note"/>
     <category field="social_science"/>
     <issn>0007-1234</issn>
-    <issn>1469-2112</issn>
+    <eissn>1469-2112</eissn>
     <summary/>
     <updated>2012-10-25T21:15:26+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/bulletin-de-la-societe-prehistorique-francaise.csl b/bulletin-de-la-societe-prehistorique-francaise.csl
index 3d851ea6b9..1c3c4c45d5 100644
--- a/bulletin-de-la-societe-prehistorique-francaise.csl
+++ b/bulletin-de-la-societe-prehistorique-francaise.csl
@@ -12,7 +12,7 @@
     <category citation-format="author-date"/>
     <category field="anthropology"/>
     <issn>0037-9514</issn>
-    <issn>1760-7361</issn>
+    <eissn>1760-7361</eissn>
     <summary>Style élaborée à partir du style ehess de F Heimburger</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/canadian-journal-of-fisheries-and-aquatic-sciences.csl b/canadian-journal-of-fisheries-and-aquatic-sciences.csl
index c27b0bcf7d..3e5c63b6ac 100644
--- a/canadian-journal-of-fisheries-and-aquatic-sciences.csl
+++ b/canadian-journal-of-fisheries-and-aquatic-sciences.csl
@@ -15,7 +15,7 @@
     <category citation-format="author-date"/>
     <category field="biology"/>
     <issn>0706-652X</issn>
-    <issn>1205-7533</issn>
+    <eissn>1205-7533</eissn>
     <updated>2012-09-09T21:58:08+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/cancer-chemotherapy-and-pharmacology.csl b/cancer-chemotherapy-and-pharmacology.csl
index 28a05e0b0e..d0c6412c61 100644
--- a/cancer-chemotherapy-and-pharmacology.csl
+++ b/cancer-chemotherapy-and-pharmacology.csl
@@ -20,7 +20,7 @@
     <category citation-format="numeric"/>
     <category field="medicine"/>
     <issn>0344-5704</issn>
-    <issn>1432-0843</issn>
+    <eissn>1432-0843</eissn>
     <summary>Springer Vancouver style - modified for Cancer Chemotherapy and Pharmacology</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/cell-research.csl b/cell-research.csl
index 6421535dc9..3968bd8374 100644
--- a/cell-research.csl
+++ b/cell-research.csl
@@ -12,7 +12,7 @@
     <category citation-format="numeric"/>
     <category field="medicine"/>
     <issn>1001-0602</issn>
-    <issn>1748-7838</issn>
+    <eissn>1748-7838</eissn>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/centaurus.csl b/centaurus.csl
index 3701a8dc95..2204e039a8 100644
--- a/centaurus.csl
+++ b/centaurus.csl
@@ -13,7 +13,7 @@
     <category field="science"/>
     <category field="history"/>
     <issn>0008-8994</issn>
-    <issn>1600-0498</issn>
+    <eissn>1600-0498</eissn>
     <summary>The Centarus style</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/cerebral-cortex.csl b/cerebral-cortex.csl
index 61ec2ad3b8..316c853942 100644
--- a/cerebral-cortex.csl
+++ b/cerebral-cortex.csl
@@ -13,7 +13,7 @@
     <category citation-format="author-date"/>
     <category field="biology"/>
     <issn>1047-3211</issn>
-    <issn>1460-2199</issn>
+    <eissn>1460-2199</eissn>
     <summary>Cerebral Cortex style</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/chemical-research-in-toxicology.csl b/chemical-research-in-toxicology.csl
index 17aaba1da7..9f71eb5af7 100644
--- a/chemical-research-in-toxicology.csl
+++ b/chemical-research-in-toxicology.csl
@@ -13,7 +13,7 @@
     <category field="chemistry"/>
     <category field="biology"/>
     <issn>0893-228X</issn>
-    <issn>1520-5010</issn>
+    <eissn>1520-5010</eissn>
     <summary>A style for the ACS publication "Chemical Research in Toxicology"</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/chest.csl b/chest.csl
index be0c0f10da..94ba749e34 100644
--- a/chest.csl
+++ b/chest.csl
@@ -18,7 +18,7 @@
     <category citation-format="numeric"/>
     <category field="medicine"/>
     <issn>0012-3692</issn>
-    <issn>1931-3543</issn>
+    <eissn>1931-3543</eissn>
     <summary>Chest style is similar to NEJM: derived from Vancouver, with superscript citations and with slightly different et-al rules</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/circulation.csl b/circulation.csl
index 8c2f7258d5..85e61e765b 100644
--- a/circulation.csl
+++ b/circulation.csl
@@ -22,7 +22,7 @@
     <category citation-format="numeric"/>
     <category field="medicine"/>
     <issn>0009-7322</issn>
-    <issn>1524-4539</issn>
+    <eissn>1524-4539</eissn>
     <summary>
     Style for the Journal Circulation, based on Vancouver without issue numbers, no et al. and journal title in italics
     </summary>
diff --git a/climate-dynamics.csl b/climate-dynamics.csl
index 38ae529ed5..04f7eaed9e 100644
--- a/climate-dynamics.csl
+++ b/climate-dynamics.csl
@@ -14,7 +14,7 @@
     <category citation-format="author-date"/>
     <category field="geography"/>
     <issn>0930-7575</issn>
-    <issn>1432-0894</issn>
+    <eissn>1432-0894</eissn>
     <summary>Climate Dynamics citation style.</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/clinical-infectious-diseases.csl b/clinical-infectious-diseases.csl
index be4a29c5d0..39ddb51410 100644
--- a/clinical-infectious-diseases.csl
+++ b/clinical-infectious-diseases.csl
@@ -19,7 +19,7 @@
     <category citation-format="numeric"/>
     <category field="medicine"/>
     <issn>1058-4838</issn>
-    <issn>1537-6591</issn>
+    <eissn>1537-6591</eissn>
     <summary>
      Style for the Oxford Journal Clinical Infectious Diseases. Followed Journal practice rather than styleguide.
     </summary>
diff --git a/clinical-orthopaedics-and-related-research.csl b/clinical-orthopaedics-and-related-research.csl
index f7bfc2031f..55d8362ef0 100644
--- a/clinical-orthopaedics-and-related-research.csl
+++ b/clinical-orthopaedics-and-related-research.csl
@@ -12,7 +12,7 @@
     <category citation-format="numeric"/>
     <category field="medicine"/>
     <issn>0009-921X</issn>
-    <issn>1528-1132</issn>
+    <eissn>1528-1132</eissn>
     <summary>The Style used for the Journal Clinical Orthopaedics and Related Research</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/cns-and-neurological-disorders-drug-targets.csl b/cns-and-neurological-disorders-drug-targets.csl
index b198e4146c..f20850b521 100644
--- a/cns-and-neurological-disorders-drug-targets.csl
+++ b/cns-and-neurological-disorders-drug-targets.csl
@@ -14,7 +14,7 @@
     <category field="biology"/>
     <category field="chemistry"/>
     <issn>1871-5273</issn>
-    <issn>1996-3181</issn>
+    <eissn>1996-3181</eissn>
     <summary>CNS &amp; Neurological Disorders - Drug Targets</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/conservation-biology.csl b/conservation-biology.csl
index 84d4e38aca..9292eae1b8 100644
--- a/conservation-biology.csl
+++ b/conservation-biology.csl
@@ -15,7 +15,7 @@
     <category citation-format="author-date"/>
     <category field="biology"/>
     <issn>0888-8892</issn>
-    <issn>1523-1739</issn>
+    <eissn>1523-1739</eissn>
     <updated>2012-09-09T21:58:08+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/critical-care-medicine.csl b/critical-care-medicine.csl
index d598472bc7..ce6750910f 100644
--- a/critical-care-medicine.csl
+++ b/critical-care-medicine.csl
@@ -12,7 +12,7 @@
     <category citation-format="numeric"/>
     <category field="medicine"/>
     <issn>0090-3493</issn>
-    <issn>1530-0293</issn>
+    <eissn>1530-0293</eissn>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/culture-medicine-and-psychiatry.csl b/culture-medicine-and-psychiatry.csl
index f781ea65ac..c5f281a3a6 100644
--- a/culture-medicine-and-psychiatry.csl
+++ b/culture-medicine-and-psychiatry.csl
@@ -17,7 +17,7 @@
     <category field="social_science"/>
     <category field="anthropology"/>
     <issn>0165-005X</issn>
-    <issn>1573-076X</issn>
+    <eissn>1573-076X</eissn>
     <updated>2012-10-25T21:15:26+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/currents-in-biblical-research.csl b/currents-in-biblical-research.csl
index fed41dccc5..6416b9b6d0 100644
--- a/currents-in-biblical-research.csl
+++ b/currents-in-biblical-research.csl
@@ -19,7 +19,7 @@
     <category citation-format="author-date"/>
     <category field="theology"/>
     <issn>1476-993X</issn>
-    <issn>1745-5200</issn>
+    <eissn>1745-5200</eissn>
     <summary>Currents in Biblical Research Style, modified from Chicago (Author-Date) style by Julian Onions</summary>
     <updated>2012-10-25T21:15:26+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/disability-and-rehabilitation.csl b/disability-and-rehabilitation.csl
index c64b63bebf..2ad3f4a4d3 100644
--- a/disability-and-rehabilitation.csl
+++ b/disability-and-rehabilitation.csl
@@ -13,7 +13,7 @@
     <category citation-format="numeric"/>
     <category field="science"/>
     <issn>0963-8288</issn>
-    <issn>1464-5165</issn>
+    <eissn>1464-5165</eissn>
     <summary/>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/drugs-of-today.csl b/drugs-of-today.csl
index eecf1c1993..86baaecefb 100644
--- a/drugs-of-today.csl
+++ b/drugs-of-today.csl
@@ -15,7 +15,7 @@
     <category field="medicine"/>
     <category field="biology"/>
     <issn>1699-3993</issn>
-    <issn>1699-4019</issn>
+    <eissn>1699-4019</eissn>
     <summary>Prous: Drugs of Today</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/early-medieval-europe.csl b/early-medieval-europe.csl
index 54d56012c5..799c43a237 100644
--- a/early-medieval-europe.csl
+++ b/early-medieval-europe.csl
@@ -13,7 +13,7 @@
     <category citation-format="note"/>
     <category field="history"/>
     <issn>0963-9462</issn>
-    <issn>1468-0254</issn>
+    <eissn>1468-0254</eissn>
     <summary>Style for the journal Early Medieval Europe.  There is an issue with page-range format in the locator, which can be fixed but breaks validation for CSL 1.0.  Until the CSL schema is updated, you can fix it yourself by following the instructions here: http://forums.zotero.org/discussion/22752/#Comment_122034.</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/ecology-letters.csl b/ecology-letters.csl
index 0f03e8ec54..64652da600 100644
--- a/ecology-letters.csl
+++ b/ecology-letters.csl
@@ -16,7 +16,7 @@
     <category citation-format="author-date"/>
     <category field="biology"/>
     <issn>1461-023X</issn>
-    <issn>1461-0248</issn>
+    <eissn>1461-0248</eissn>
     <updated>2013-02-20T13:28:44+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/ecosystems.csl b/ecosystems.csl
index 3460e08d4d..a0fb208e9a 100644
--- a/ecosystems.csl
+++ b/ecosystems.csl
@@ -15,7 +15,7 @@
     <category citation-format="author-date"/>
     <category field="biology"/>
     <issn>1432-9840</issn>
-    <issn>1435-0629</issn>
+    <eissn>1435-0629</eissn>
     <updated>2012-09-09T21:58:08+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/embo-reports.csl b/embo-reports.csl
index c495d55f88..47cf31808c 100644
--- a/embo-reports.csl
+++ b/embo-reports.csl
@@ -12,7 +12,7 @@
     <category citation-format="numeric"/>
     <category field="biology"/>
     <issn>1469-221X</issn>
-    <issn>1469-3178</issn>
+    <eissn>1469-3178</eissn>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/environmental-conservation.csl b/environmental-conservation.csl
index 6c57ed6c67..05df7ad690 100644
--- a/environmental-conservation.csl
+++ b/environmental-conservation.csl
@@ -15,7 +15,7 @@
     <category citation-format="author-date"/>
     <category field="biology"/>
     <issn>0376-8929</issn>
-    <issn>1469-4387</issn>
+    <eissn>1469-4387</eissn>
     <summary>Style for the Cambridge Journal Environmental conservation</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/environmental-microbiology.csl b/environmental-microbiology.csl
index 38f20e1339..25e5cba152 100644
--- a/environmental-microbiology.csl
+++ b/environmental-microbiology.csl
@@ -12,7 +12,7 @@
     <category citation-format="author-date"/>
     <category field="biology"/>
     <issn>1462-2912</issn>
-    <issn>1462-2920</issn>
+    <eissn>1462-2920</eissn>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/european-journal-of-clinical-microbiology-and-infectious-diseases.csl b/european-journal-of-clinical-microbiology-and-infectious-diseases.csl
index 86e4bf6c82..a4203d9ea2 100644
--- a/european-journal-of-clinical-microbiology-and-infectious-diseases.csl
+++ b/european-journal-of-clinical-microbiology-and-infectious-diseases.csl
@@ -13,7 +13,7 @@
     <category citation-format="numeric"/>
     <category field="medicine"/>
     <issn>0934-9723</issn>
-    <issn>1435-4373</issn>
+    <eissn>1435-4373</eissn>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/european-journal-of-emergency-medicine.csl b/european-journal-of-emergency-medicine.csl
index 9612eab2e1..871ceb6304 100644
--- a/european-journal-of-emergency-medicine.csl
+++ b/european-journal-of-emergency-medicine.csl
@@ -13,7 +13,7 @@
     <category citation-format="numeric"/>
     <category field="medicine"/>
     <issn>0969-9546</issn>
-    <issn>1473-5695</issn>
+    <eissn>1473-5695</eissn>
     <summary>Vancouver style adapted for EJEM</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/european-journal-of-neuroscience.csl b/european-journal-of-neuroscience.csl
index a00b2ac051..2ffb925aec 100644
--- a/european-journal-of-neuroscience.csl
+++ b/european-journal-of-neuroscience.csl
@@ -13,7 +13,7 @@
     <category citation-format="author-date"/>
     <category field="biology"/>
     <issn>0953-816X</issn>
-    <issn>1460-9568</issn>
+    <eissn>1460-9568</eissn>
     <summary>European Journal of Neuroscience style</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/european-journal-of-soil-science.csl b/european-journal-of-soil-science.csl
index de27ab7e53..b71ab432c9 100644
--- a/european-journal-of-soil-science.csl
+++ b/european-journal-of-soil-science.csl
@@ -13,7 +13,7 @@
     <category citation-format="author-date"/>
     <category field="biology"/>
     <issn>1351-0754</issn>
-    <issn>1365-2389</issn>
+    <eissn>1365-2389</eissn>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/eye.csl b/eye.csl
index e3c8a1ca3a..4592bf2b20 100644
--- a/eye.csl
+++ b/eye.csl
@@ -15,7 +15,7 @@
     <category citation-format="numeric"/>
     <category field="medicine"/>
     <issn>0950-222X</issn>
-    <issn>1476-5454</issn>
+    <eissn>1476-5454</eissn>
     <summary>Style for the Nature Journal Eye</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/flavour-and-fragrance-journal.csl b/flavour-and-fragrance-journal.csl
index ccdb9414cf..e5b3680f33 100644
--- a/flavour-and-fragrance-journal.csl
+++ b/flavour-and-fragrance-journal.csl
@@ -12,7 +12,7 @@
     <category citation-format="numeric"/>
     <category field="science"/>
     <issn>0882-5734</issn>
-    <issn>1099-1026</issn>
+    <eissn>1099-1026</eissn>
     <summary>Originally, A style for Wiley-VCH's journal "Small" and other Wiley journals - there is no et. al. !!!!
 This style has the limit, due to csl constraints, of support for citing 1a)... b)...c)....
 based on style "small-wiley"
diff --git a/freshwater-biology.csl b/freshwater-biology.csl
index ea8f931e7c..36f68a6ec5 100644
--- a/freshwater-biology.csl
+++ b/freshwater-biology.csl
@@ -16,7 +16,7 @@
     <category citation-format="author-date"/>
     <category field="biology"/>
     <issn>0046-5070</issn>
-    <issn>1365-2427</issn>
+    <eissn>1365-2427</eissn>
     <summary>Style for the Wiley journal Freshwater Biology</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/genetics.csl b/genetics.csl
index 126e6219ee..c7ebd41bf5 100644
--- a/genetics.csl
+++ b/genetics.csl
@@ -13,7 +13,7 @@
     <category citation-format="author-date"/>
     <category field="biology"/>
     <issn>0016-6731</issn>
-    <issn>1943-2631</issn>
+    <eissn>1943-2631</eissn>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/geological-magazine.csl b/geological-magazine.csl
index ce0419a61d..0cd5481111 100644
--- a/geological-magazine.csl
+++ b/geological-magazine.csl
@@ -12,7 +12,7 @@
     <category citation-format="author-date"/>
     <category field="geology"/>
     <issn>0016-7568</issn>
-    <issn>1469-5081</issn>
+    <eissn>1469-5081</eissn>
     <summary>Style for the Geological Magazine by Cambridge University Press</summary>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/geology.csl b/geology.csl
index 7c2f8dbe2e..3c297b071f 100644
--- a/geology.csl
+++ b/geology.csl
@@ -14,7 +14,7 @@
     <category citation-format="author-date"/>
     <category field="geology"/>
     <issn>0091-7613</issn>
-    <issn>1943-2682</issn>
+    <eissn>1943-2682</eissn>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/geopolitics.csl b/geopolitics.csl
index cd9059c058..2bfae5ddc8 100644
--- a/geopolitics.csl
+++ b/geopolitics.csl
@@ -23,7 +23,7 @@
     <category citation-format="note"/>
     <category field="social_science"/>
     <issn>1465-0045</issn>
-    <issn>1557-3028</issn>
+    <eissn>1557-3028</eissn>
     <summary/>
     <updated>2012-10-25T21:15:26+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/global-change-biology.csl b/global-change-biology.csl
index 2f833cccd4..956bebbb5a 100644
--- a/global-change-biology.csl
+++ b/global-change-biology.csl
@@ -13,7 +13,7 @@
     <category citation-format="author-date"/>
     <category field="biology"/>
     <issn>1354-1013</issn>
-    <issn>1365-2486</issn>
+    <eissn>1365-2486</eissn>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
diff --git a/global-ecology-and-biogeography.csl b/global-ecology-and-biogeography.csl
index 07dcf4c181..fac9dac80f 100644
--- a/global-ecology-and-biogeography.csl
+++ b/global-ecology-and-biogeography.csl
@@ -13,7 +13,7 @@
     <category citation-format="author-date"/>
     <category field="biology"/>
     <issn>1466-822X</issn>
-    <issn>1466-8238</issn>
+    <eissn>1466-8238</eissn>
     <summary>The Global Ecology and Biogeography style</summary>
     <updated>2012-10-25T21:15:26+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
diff --git a/graefes-archive-clinical-and-experimental-ophthalmology.csl b/graefes-archive-clinical-and-experimental-ophthalmology.csl
index e2bdc5a727..c3f4105dec 100644
--- a/graefes-archive-clinical-and-experimental-ophthalmology.csl
+++ b/graefes-archive-clinical-and-experimental-ophthalmology.csl
@@ -15,7 +15,7 @@
     <category citation-format="numeric"/>
     <category field="medicine"/>
     <issn>0721-832X</issn>
-    <issn>1435-702X</issn>
+    <eissn>1435-702X</eissn>
     <updated>2012-09-27T22:06:38+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>