@inproceedings{CSCW-2008-CampbellNF,
	author        = "Taj Campbell and Brian Ngo and James Fogarty",
	booktitle     = "{Proceedings of the 12th ACM Conference on Computer Supported Cooperative Work}",
	doi           = "10.1145/1460563.1460603",
	isbn          = "978-1-60558-007-4",
	pages         = "249--252",
	publisher     = "{ACM}",
	title         = "{Game design principles in everyday fitness applications}",
	year          = 2008,
}