@inproceedings{CHI-PLAY-2015-BartelFH,
	author        = "Alexander Bartel and Paula Figas and Georg Hagel",
	booktitle     = "{Proceedings of the Second Annual Symposium on Computer-Human Interaction in Play}",
	doi           = "10.1145/2793107.2810325",
	isbn          = "978-1-4503-3466-2",
	pages         = "457--462",
	publisher     = "{ACM}",
	title         = "{Towards a Competency-based Education with Gamification Design Elements}",
	year          = 2015,
}