On my Mac I am working with BibDesk to manage my literature references in LyX. Everything works just fine. Except for the following.

In BibDesk I added a certain book with a german title in which capital letters appear and it looks this way.

BibDesk Screenshot

After setting up lyx the citation in the bibliography section of my document appears this way.

LyX Screenshot

Somehow the letters f in the word Funktionen and the M in the word Modulformen were transformed to lower case, which is wrong and clearly not the same as I entered them in BibDesk.

Any idea where this comes from?

  • As explained in the answers below this due to bibtex's parsing features. This difficulty of markup does not occur with biblatex/biber and could be a reason to swap to their bibliography mechanisms. Nov 10, 2012 at 18:44

1 Answer 1


Enclose the letters that you would like preserved as uppercase in brackets, {}. If you would like to preserve the whole title, put everything within the extra pair of brackets:

{{Elliptische Funktionen und Modulformen}}

egreg points out in a comment to this answer that the following is better:

title={Elliptische {Funktionen} und {Modulformen}}

Note that there are reasons why the default behavior is what it is. There is a lot of information on this topic.

  • This saves in keystrokes, but I believe that title={Elliptische {Funktionen} und {Modulformen}} is better.
    – egreg
    Nov 10, 2012 at 17:11
  • @egreg Good to know. And is title={Elliptische {F}unktionen und {M}odulformen} even better? I don't know what the differences are. Is there source where I can read up on this?
    – scottkosty
    Nov 10, 2012 at 17:17
  • No, using {F}unktionen won't kern between the "F" and the "u", which might be worse for words starting with "To", for instance.
    – egreg
    Nov 10, 2012 at 17:18
  • @egreg Ah, that makes sense.
    – scottkosty
    Nov 10, 2012 at 17:21

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