%% 
%%  An UIT Edition example
%% 
%%  Example 04-26-2 on page 137.
%% 
%%  Copyright (C) 2012 Vo\ss 
%% 
%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%% 
%%  See http://www.latex-project.org/lppl.txt for details.
%% 

% Show page(s) 1,2

%% ==== 
\PassOptionsToClass{}{beamer}
\documentclass{exabeamer}
\usepackage[utf8]{inputenc}
% needs a bibtex run

%\StartShownPreambleCommands
\beamerdefaultoverlayspecification{<+->} \bibliographystyle{plain}
%\StopShownPreambleCommands

\begin{document}
\begin{frame}{bibliography}
A citation~\cite{voss2006}, another citation~\cite{symbollist}, which occur as
overlays in the bibliography because an according specification has been made in
the preamble.
\bibliography{Presentation}
\end{frame}
\end{document}