@inproceedings{DiGRA-2003-BjorkH,
	author        = "Staffan Björk and Jussi Holopainen",
	booktitle     = "{Proceedings of the Second Digital Games Research Conference: Level Up}",
	ee            = "http://www.digra.org/digital-library/publications/describing-games-an-interaction-centric-structural-framework/",
	title         = "{Describing Games: An Interaction-Centric Structural Framework}",
	year          = 2003,
}