Latex - Inserting a reference in a figure's caption

Question

In Latex, I want to add a reference in the legend of a figure, like:

\begin{figure}
   ...
   \caption{This is the legend of this figure (reprinted from \cite{something}).}
   ...
\end{figure}

but the citation is not allowed to be placed in the the caption, only in the text. My bibliography is working on any other places of the text.

Any suggestions how to do this?

Thanks

Solution 1

Solution found: write \protect\cite{ref} instead of just \cite{ref}

Or even shorter: '{\cite{ref}}'

Solution 2

As the accepted answer seems rather hacky (and also didn't work for me) I will post my solution for the problem:

\begin{figure}
  ...
  \caption[Cap for listoffigures]{Cap below figure with cite \cite{source}}
  ...
\end{figure}

This compiles without errors and warnings.

Comments

[Subhamoy S.]

I am compiling with xelatex and I can see no citation in the caption. Enclosing it in \protect{} has no effect either.

[Subhamoy S.]

Don't know about PdfLaTeX, but this is not working in xelatex.

[Tom]

This did solve the problem for me when I used pdflatex.

[drevicko]

For me (pdflatex), \protect worked, but enclosing in {} didn't

[maia]

Also works for hyperlinks -- \protect\hyperlink{supp1}{Supplemental link 1} instead of \hyperlink{supp1}{Supplemental link 1}

[Carlos Luis Rivera]

{\protect\autocite{ref}} (using BibLaTeX) worked fine with XeLaTeX. So, putting \protect and the citation command in a pair of curly braces, i.e. {\protect\cite{ref}}, will also work fine with XeLaTeX.

[Carlos Luis Rivera]

@SubhamoyS. {\protect\autocite{ref}} (using BibLaTeX) worked fine with XeLaTeX. So, putting \protect and the citation command in a pair of curly braces, i.e. {\protect\cite{ref}}, will also work fine with XeLaTeX.