@inproceedings{FDG-2012-WetzelBO,
	author        = "Richard Wetzel and Lisa Blum and Leif Oppermann",
	booktitle     = "{Proceeedings of the Seventh International Conference on the Foundations of Digital Games}",
	doi           = "10.1145/2282338.2282385",
	isbn          = "978-1-4503-1333-9",
	pages         = "238--241",
	publisher     = "{ACM}",
	title         = "{Tidy city: a location-based game supported by in-situ and web-based authoring tools to enable user-created content}",
	year          = 2012,
}