Dear Friends, I am puzzled by an uppercase problem with Bibtex. My bib file has the following entry: @UNPUBLISHED{jansen2002, author="Jansen, Arnold Hendrik", title ="Eetgewoonten bij Europeanen en Amerikanen", year ="2002", } Note the uppercase with Europeanen en Amerikanen. In the bbl file they unfortunately have changed into undercase: \startpublication[k=jansen2002,t=unpublished, a={Jansen},y=2002, n=24,s=Jan02] \author[]{Arnold~Hendrik}[A.~H.]{}{Jansen} \pubyear{2002} \title{Eetgewoonten bij europeanen en amerikanen} \stoppublication And thus in my document undercase is used again: Jansen, A. H. (2002). Eetgewoonten bij europeanen en amerikanen. Perhaps this is an old problem, but does anybody have a solution? Kind regards, Robert Ermers