In my bibtex file (in Jabref) I have several authors that require an umlaut. I was using \ddot which was doing the trick. Unfortunately I've needed to load some other symbols from MnSymbol that requires amsmath as well. As a result I can no longer use \ddot. Does anyone have any suggestions on how I can give my authors back their umlaut?
I get the following error message when I use \ddot:
! Package amsmath Error: \ddot allowed only in math mode.

\"for umlauts (as inG\"odel)? – Gonzalo Medina Mar 29 '12 at 14:00