I am using ACM 2017 edition of .cls for my journal:

\documentclass[format=acmsmall, review=false, screen=true]{acmart}

using pdflatex on Overleaf and the below bibliography style:

% Bibliography

However, I am seeing an extra reference in my bibliography section having [1] and is empty. Can't seem to find a way to remove this extra empty reference. Any help is appreciated.

  • 2
    Maybe there's a stray \cite{} in your .tex file? (Use Ctrl+F as a quick check)
    – imnothere
    Jul 19, 2017 at 6:46
  • 2
    check log files for warnings. helps to narrow down the search
    – naphaneal
    Jul 19, 2017 at 9:04
  • @LianTzeLim, I checked for that and no instances found.
    – Amir
    Jul 20, 2017 at 23:23
  • @naphaneal, Checked the log file related to Bibtex, justs a bunch of warnings related to style and yet no error and other things helpful.
    – Amir
    Jul 21, 2017 at 0:22

1 Answer 1


I had this problem and found the problem was called by an error in my bib file. I had written:

title = {...}, 
journal = {...},
etc., down to a final closing }

The correct entry should have been

title = {...}, 
journal = {...},
etc., down to a final closing }

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