Redundant year in bibliography

[keenancrane]

Many bibliography entries show the year twice. For instance, the bib entry

@article{Cheung,
   author = {Kenneth Cheung and Tomohiro Tachi and Sam Calisch and Koryo Miura},
   title = {Origami interleaved tube cellular materials},
   journal = {Smart Materials and Structures},
   volume = {23},
   number = {9},
   year = {2014}
}

gets rendered as

I suspect this is happening because the ACM reference format specifies that the journal month and year should follow the volume and number:

https://www.acm.org/publications/authors/reference-formatting

But in a case where the publisher does not associate a month with a given issue, it's not clear whether or not re-printing the year (sans month) is the correct behavior.

[borisveytsman]

This is how ACM wants it.