\begin{thebibliography}{\protect\citename{Sweetser and Wyeth }2005}

\bibitem[\protect\citename{Hayes }]{hayes_thesis}
{\sc Hayes, B.~H.}
\newblock Software driven multi-touch input display as an improved, intuitive,
  and practical interaction device.
\newblock {\em http://www.bradhayes.info/thesis.pdf\/}.

\bibitem[\protect\citename{Sweetser and Wyeth }2005]{gameflow}
{\sc Sweetser, P., and Wyeth, P.}
\newblock 2005.
\newblock Gameflow: A model for evaluation player enjoyment in games.
\newblock {\em Computers in Entertainment (CIE)\/} (July).

\end{thebibliography}
