@inproceedings{CHI-2004-AhnD,
	author        = "Luis von Ahn and Laura Dabbish",
	booktitle     = "{Proceedings of the 22nd ACM SIGCHI Conference on Human Factors in Computing Systems}",
	doi           = "10.1145/985692.985733",
	isbn          = "1-58113-702-8",
	pages         = "319--326",
	publisher     = "{ACM}",
	title         = "{Labeling images with a computer game}",
	year          = 2004,
}