I've found a work-around: Lyx is using the command \citeauthor everywhere where we see (author?). I edited my .lyx-file with vim and changed it to \cite - now the errors are gone and I see |1|, |2|, ... in the dvi/pdf file :-)
Bye. Thorsten -- PGP public key: http://home.arcor.de/thorstenhirsch/thirschatwebde.asc
