we are talking about (La)TeX and not some packages and not ERT. In _LaTeX_ it is not a good idea to have spaces and/or control characters in filesnames/labels/keywords.
Herbert,
it is even worse. It seems as if {natbib} doesn`t accept a german Umlaut in keywords.
What about a Umlaut in labels and filenames?
Thanks
Michael -- http://www.logies.de/ (u. a. _die_ Mailingliste f�r die Dentalbranche) PGP-key (RSA/IDEA) kommt mit angeforderter Empfangsbest�tigung (return receipt)
