Christoph Klimmt Christopher Blake Dorothée Hefner Peter Vorderer Christian Roth Player Performance, Satisfaction, and Video Game Enjoyment. 1-12 2009 ICEC http://dx.doi.org/10.1007/978-3-642-04052-8_1 conf/iwec/2009 db/conf/iwec/icec2009.html#KlimmtBHVR09