There is a problem with the article.sty (21-DEC-1992), which I ftp'ed from
ymir.claremont.edu.
There isn't an article.sty file dated 21-DEC-1992. The most recent one
is dated January 14, 1992.
The problem has to do with the bibliography.
If you specify two or more files in the \bibliography command,
the cite numbers are all 0.
This is a problem of incompatible versions. You cannot upgrade to one
of the newer releases of article.sty with upgrading latex.tex (and all
other files) as well.
It says so in the readme file.
Rainer Schoepf
*2.09 maintenance
--
Rainer Schoepf
Konrad-Zuse-Zentrum
fuer Informationstechnik Berlin
Heilbronner Strasse 10
W-1000 Berlin 31
Federal Republic of Germany