@inproceedings{CSCW-2012-LiuWLWD,
	author        = "Huanglingzi Liu and Wei Wang and Dong Liu and Hao Wang and Nan Du",
	booktitle     = "{Proceedings of the 15th ACM Conference on Computer Supported Cooperative Work}",
	doi           = "10.1145/2145204.2145282",
	isbn          = "978-1-4503-1086-4",
	pages         = "505--508",
	publisher     = "{ACM}",
	title         = "{HappyGo: a field trial of local group buying}",
	year          = 2012,
}