Motivations for play in online games. Yee, N. CyberPsychology Behavior, 9:772–775, 2006.
bibtex   
@article{yee_motivations_2006,
	title = {Motivations for play in online games},
	volume = {9},
	language = {en},
	journal = {CyberPsychology Behavior},
	author = {Yee, N.},
	year = {2006},
	pages = {772--775},
}

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