@inproceedings{SIGIR-2011-AlonsoL,
	author        = "Omar Alonso and Matthew Lease",
	booktitle     = "{Proceedings of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/2009916.2010170",
	isbn          = "978-1-4503-0757-4",
	pages         = "1299--1300",
	publisher     = "{ACM}",
	title         = "{Crowdsourcing for information retrieval: principles, methods, and applications}",
	year          = 2011,
}