TeX - LaTeX Stack Exchange is a question and answer site for users of TeX, LaTeX, ConTeXt, and related typesetting systems. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I need romanian characters ş and ţ in citations. For this I updated chicago style (chicago.bst file) and for et. al. i replaced:

first " ş.a. " but i got ?.a. instead second " \cb{s}.a." but i get the following error


The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.[/code]

The WME is:


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% User specified LaTeX commands.





link to bib file

link to modified chicago style

I tried in \usepackage[utf8x]{inputenc}, utf8x and latin1 without succes. Because I use LyX and because I have limited time I cannot use biblatex.

Edit: the result of the combelow \cb{s} command

combelow \cb{s} command

Any clue would help!

share|improve this question
up vote 2 down vote accepted

I'm not familiar with the specific "accent" created by the \cb command. Separately, which package defines the \cb macro? The error message you report indicates that the macro isn't recognized by LaTeX (or BibTeX), which could be because you didn't load all required packages.

However, as long as the \cb command is (properly) defined somewhere, you should be in business, as far as BibTeX is concerned, if you type {\cb s} instead of \cb{s} in bibliographic entries. (You can keep using \cb{s} in the remainder of the document.)

When it comes to sorting entries via BibTeX's mechanisms, words containing {\cb s} will be sorted as if the accented s-character were a "plain" s (without the accent). If this is not what you want, you'll probably have to use biblatex and biber instead of BibTeX.

share|improve this answer
I founded the comand on Wikipedia, but now i identified also the package. This is combelow. Entering \usepackage{combelow} now render the comma under s, but is placed not centered, but on the left (see the image in the main article). – mihai niculita Sep 14 '12 at 13:34
Well, i introduced a space ({ s}), and that created the mistake. Using \cb{s} in the .bst file indeed resolve the problem and the citations are produced with the proper (actually using a trick, so not very proper) romanian characters. Thank for the clue! – mihai niculita Sep 14 '12 at 13:40
@mihainiculita - Thanks for these additional explanations. Incidentally, have you tried the "cedilla" \c diacritic? – Mico Sep 14 '12 at 16:03
The cedilla is not covered by the package combelow. This package support only comma under and upper. – mihai niculita Sep 14 '12 at 16:48

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.