Roland Winkler <Roland.Winkler@physik.uni-erlangen.de> writes:

> Roland Winkler <Roland.Winkler@physik.uni-erlangen.de> writes:
>> Formatting of BibTeX entries is controlled by the variable
>> bibtex-entry-format which contains a list of formatting options.
>> Empty fields are deleted if this list contains 'opts-or-alts. Remove
>> this from the list and you should get what you want.
>
> Ooops, this is just part one of your more specific question. With
> the above you will keep all empty fields. You could then put a
> function into bibtex-clean-entry-hook that deletes all empty fields
> except for the one you want to keep.

Thank you, I've done it that way now. At least half of it. For the
second part, the hook, I have to experiment a bit.

Greetings

Sven