@inproceedings{CSCW-2014-ChengB,
	author        = "Justin Cheng and Michael S. Bernstein",
	booktitle     = "{Proceedings of the 17th ACM Conference on Computer Supported Cooperative Work}",
	doi           = "10.1145/2531602.2531635",
	isbn          = "978-1-4503-2540-0",
	pages         = "1211--1221",
	publisher     = "{ACM}",
	title         = "{Catalyst: triggering collective action with thresholds}",
	year          = 2014,
}