[texhax] unused bibliography entries

[Ross Moore]

Hi Tom, and others,

You should be able to make use of the  backref  feature of
hyperref, provided that you have loaded
  \usepackage[backref, .... other options ...]{hyperref}
or
  \hypersetup{backref=true}

For every citation, this creates a hyperlink from the bibliography
to where that citation occurs within the body of the document.
So now you can easily do a visual check to see whether any biblio
entries have no such back-link.

Alternatively, I'd guess the hack would be rather trivial to add
a warning message into the coding in backref.sty  for any biblio entry
that has no back-references (i.e. was not cited within the document).

(Of course you just turn off the backref feature, if you don't want the
extra material inserted for back-references in your final run.)


Hope this helps,

	Ross Moore


On Sat, 12 Jul 2003, Tom Schneider wrote:

> Jan:
>
> > I have a question concerning references: How to get a complete
> > correspondence between the \cite commands in the text and the
> > \bibitem entries in the bibliography?
> >
> > As far as I know, standard LaTeX only detects missing \bibitem entries
> > and in that case issues a warning ("There were undefined references").
> >
> > Now, I'm looking for the opposite: Is it possible to automatically
> > check that *all* \bibitem entries are referred to by corresponding
> > \cite commands? How to make LaTeX issue a warning like "There were
> > unused bibliography entries"?
> >
> >  Jan-Martin Wagner
> >
> > (jmartin at ifto.physik.uni-jena.de)
>
> I use a csh script, 'l', that automatically detects undefined
> references and calls bibtex as needed.  When set up with atchange (an
> automation tool) one simply inserts the citation and everything is
> taken care of automatically.  See:
>
> ftp://ftp.ncifcrf.gov/pub/delila/l
> http://www.lecb.ncifcrf.gov/~toms/atchange.html
>
> Tom
>
>   Dr. Thomas D. Schneider
>   National Cancer Institute
>   Laboratory of Experimental and Computational Biology
>   Frederick, Maryland  21702-1201
>   toms at ncifcrf.gov
>   permanent email: toms at alum.mit.edu (use only if first address fails)
>   http://www.lecb.ncifcrf.gov/~toms/
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