# Citation aliases in Beamer

I am using Beamer with the Frankfurt style. I have some citations in the presentation and a list of references at the end.

First I tried using the standard \cite and \bibliography with \bibliographystyle{plain}:

The Bibliography appears beautifully formatted in Beamer style with little icons for the type of document. But the citation in the text appears as [1], even though [1] does not appear in the Bibliography listing.

I wanted to create an alias for the citation using free text. I tried using natbib:

\defcitealias{jon90}{Paper~I}
\citetalias{jon90}


This gives me the citation that I want, but then I lose the beautiful formatting of the Bibliography at the end (it reverts to standard natbib style).

How can I get natbib-style citation aliasing to work alongside Beamer Frankfurt bibliography formatting?

MWEB

test.bib:

@misc{mybibitem,
title        = {The Presentation},
author       = {Anon Y Mous},
howpublished = {\url{http://somewebsite}}
}


test.tex, to get nicely formatted references but with [1] as the citation label: \documentclass{beamer} \usetheme{Frankfurt}

\begin{document}
\begin{frame}{My Content}{Source: \cite{mybibitem}}
Some content
\end{frame}

\begin{frame}{References}{}
\bibliography{test}
\bibliographystyle{plain}
\end{frame}
\end{document}


Alternate test.tex, to get custom citation label but ugly formatted references:

\documentclass{beamer}
\usetheme{Frankfurt}
\usepackage{natbib}

\begin{document}
\defcitealias{mybibitem}{My Custom Label}
\begin{frame}{My Content}{Source: \citetalias{mybibitem}}
Some content
\end{frame}

\begin{frame}{References}{}
\bibliography{test}
\bibliographystyle{plain}
\end{frame}
\end{document}

• Can you please make a minimal working example with bibliography (MWEB)? – user36296 Oct 13 '17 at 9:19
• MWEB added as requested. – Michael D. Oct 13 '17 at 11:52
• First of the plain style is not compatible with natbib so it cannot provide author-year if that is what you are after. Switching to plainnat and deliting aux and bbl files + recompile, then it works as expected. – daleif Oct 13 '17 at 12:06
• I am not trying to use author-year, I want to provide my own custom label alias. Changing to plainnat does not give the Beamer-style formatting. – Michael D. Oct 13 '17 at 12:26
• How should Paper~I appear in the bibliography? – user36296 Oct 13 '17 at 15:55

Finally I made a solution which is a bit of a hack but was sufficient for this presentation.

I am not using natbib as it loses the Beamer reference formatting. The following formats the references how I want them:

\begin{frame}[allowframebreaks]{References}{}
\bibliography{test}
\bibliographystyle{unsrt}
\end{frame}


Then I redefined the \bibitem command and created a new \citealias command to give the user-defined reference labels and hyperlink cross-referencing within the document:

\let\oldbibitem=\bibitem
\renewcommand{\bibitem}[2][]{\label{mybib#2}\oldbibitem[#1]{#2}}

\begin{frame}{My Content}{Source: \citealias{mybibitem}{My Custom Label}}