@inproceedings{DiGRA-2007-Schultheiss,
	author        = "Daniel Schultheiss",
	booktitle     = "{Proceedings of the Fourth DiGRA International Conference: Situated Play}",
	ee            = "http://www.digra.org/digital-library/publications/long-term-motivations-to-play-mmogs-a-longitudinal-study-on-motivations-experience-and-behavior/",
	publisher     = "{Digital Games Research Association}",
	title         = "{Long-term motivations to play MMOGs: A longitudinal study on motivations, experience and behavior}",
	year          = 2007,
}