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

Answer 1

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

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

Answer 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.