Sorry that this is not Debian related but only FYI. I installed the latest amslatex(amsclass.dtx ver. 2.07) and found that the problem of \author command with \\ was completely solved, that is, we need not even put \protect before \\ Regards, 2000.6.9 -- Debian JP Developer - much more I18N of Debian Atsuhito Kohda <kohda@pm.tokushima-u.ac.jp> Department of Math., Tokushima Univ.