@inproceedings{DiGRA-2019-GrabarczykA,
	author        = "Pawel Grabarczyk and Espen Aarseth",
	booktitle     = "{Proceedings of the 13th DiGRA International Conference: Game, Play and the Emerging Ludo-Mix}",
	ee            = "http://www.digra.org/digital-library/publications/port-or-conversion-an-ontological-framework-for-classifying-game-versions/",
	publisher     = "{Digital Games Research Association}",
	title         = "{Port or conversion? An ontological framework for classifying game versions}",
	year          = 2019,
}