Adam S. Kahn, Cuihua Shen, Li Lu, Rabindra A. Ratan, Sean Coary, Jinghui Hou, Jingbo Meng, Joseph Osborn, Dmitri Williams. The Trojan Player Typology: A cross-genre, cross-cultural, behaviorally validated scale of video game play motivations. Computers in Human Behavior, 49:354-361, 2015. [doi]