Taj Campbell, Brian Ngo, James Fogarty. Game design principles in everyday fitness applications. In Bo Begole, David W. McDonald, editors, Proceedings of the 2008 ACM Conference on Computer Supported Cooperative Work, CSCW 2008, San Diego, CA, USA, November 8-12, 2008. pages 249-252, ACM, 2008. [doi]
Abstract is missing.