@inproceedings{DiGRA-2011-HamariE,
	author        = "Juho Hamari and Veikko Eranti",
	booktitle     = "{Proceedings of the Sixth DiGRA International Conference: Think, Design, Play}",
	ee            = "http://www.digra.org/digital-library/publications/framework-for-designing-and-evaluating-game-achievements/",
	publisher     = "{Digital Games Research Association}",
	title         = "{Framework for Designing and Evaluating Game Achievements}",
	year          = 2011,
}