author={H. Gürkök and G. Hakvoort and M. Poel},
 title={Evaluating user experience with respect to user expectations in brain-computer interface games},
 booktitle={Proceedings of the 5th International Brain-Computer Interface Conference, BCI 2011},
 editor={G.R. Müller-Putz and R. Scherer and M. Billinger and A. Kreilinger and V. Kaiser and C. Neuper},
 address={Graz, Austria},
 publisher={Verlag der Technischen Universität Graz},
\footnote{This Unique BiBTeX-key-identifier is generated, because the author did not insert a value into the database}