The following code shows the issues we may face with long bibliographies

% One slide bibliography
\documentclass{beamer}

% Theme choice
\usetheme{AnnArbor}

\begin{document}

% Add bibliography frame
\begin{frame}{References} 
    \nocite{*}
    \bibliographystyle{unsrt}
    \bibliography{MyReferences}
\end{frame}

\end{document}

As you can remark, some references do not appear. To remedy this issue, we can add the option [allowframebreaks] to the frame in question to get multiple slides. Check the modified code:

% Multiple slides bibliography
\documentclass{beamer}

% Theme choice
\usetheme{AnnArbor}

\begin{document}

% Add bibliography frame
\begin{frame}[allowframebreaks]{References} 
    \nocite{*}
    \bibliographystyle{unsrt}
    \bibliography{MyReferences}
\end{frame}

\end{document}

which yields to the following two slides:

We reached the end of this tutorial, please don’t forget to share it if you find it useful!