Markus Mühling Ralph Ewerth Thilo Stadelmann Bernd Freisleben René Weber Klaus Mathiak Semantic video analysis for psychological research on violence in computer games. 611-618 2007 conf/civr/2007 CIVR http://doi.acm.org/10.1145/1282280.1282367 db/conf/civr/civr2007.html#MuhlingESFWM07