@inproceedings{DiGRA-2007-BjorkP,
	author        = "Staffan Björk and Johan Peitz",
	booktitle     = "{Proceedings of the Fourth DiGRA International Conference: Situated Play}",
	ee            = "http://www.digra.org/digital-library/publications/understanding-pervasive-games-through-gameplay-design-patterns/",
	publisher     = "{Digital Games Research Association}",
	title         = "{Understanding Pervasive Games through Gameplay Design Patterns}",
	year          = 2007,
}