@inproceedings{SIGIR-2011-KazaiKKM,
	author        = "Gabriella Kazai and Jaap Kamps and Marijn Koolen and Natasa Milic-Frayling",
	booktitle     = "{Proceedings of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/2009916.2009947",
	isbn          = "978-1-4503-0757-4",
	pages         = "205--214",
	publisher     = "{ACM}",
	title         = "{Crowdsourcing for book search evaluation: impact of hit design on comparative system ranking}",
	year          = 2011,
}