@inproceedings{CSCW-2013-MasonC,
	author        = "Winter A. Mason and Aaron Clauset",
	booktitle     = "{Proceedings of the 16th ACM Conference on Computer Supported Cooperative Work}",
	doi           = "10.1145/2441776.2441820",
	isbn          = "978-1-4503-1331-5",
	pages         = "375--386",
	publisher     = "{ACM}",
	title         = "{Friends FTW! friendship and competition in halo: reach}",
	year          = 2013,
}