@inproceedings{ author={Aarseth Espen and Smedstad Solveig Marie and Sunnan\&\#229 Lise}, year={2003}, title={A multidimensional typology of games}, isbn={ISSN 2342-9666}, booktitle={DiGRA \&\#3903 - Proceedings of the 2003 DiGRA International Conference: Level Up}, url={http://www.digra.org/wp-content/uploads/digital-library/05163.52481.pdf} }