add back numbering of reference list for bioresource technology

bioresource-technology.csl

@@ -6,18 +6,14 @@
     <link href="http://www.zotero.org/styles/bioresource-technology" rel="self"/>
     <link href="http://www.zotero.org/styles/ecology-letters" rel="template"/>
     <link href="http://www.elsevier.com/journals/bioresource-technology/0960-8524/guide-for-authors#68001" rel="documentation"/>
-    <contributor>
+    <author>
       <name>Sebastian Karcher</name>
-    </contributor>
-    <contributor>
-      <name>Charles Parnot</name>
-      <email>charles@mekentosj.com</email>
-      <uri>http://twitter.com/cparnot</uri>
-    </contributor>
+    </author>
     <category citation-format="author-date"/>
     <category field="biology"/>
     <issn>0960-8524</issn>
     <eissn>1873-2976</eissn>
+    <summary>Basically Elsevier Harvard. The bizarre numbering of the bibliography is required (in all caps!) in the guide for authors</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>
   </info>
@@ -216,6 +212,7 @@
     </sort>
     <layout>
       <group suffix=".">
+        <text variable="citation-number" suffix=". "/>
         <text macro="author" suffix=","/>
         <text macro="issued" prefix=" " suffix=". "/>
         <group>