@inproceedings{SIGIR-2010-HofmannHBR,
	author        = "Katja Hofmann and Bouke Huurnink and Marc Bron and Maarten de Rijke",
	booktitle     = "{Proceedings of the 33rd International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/1835449.1835603",
	isbn          = "978-1-4503-0153-4",
	pages         = "761--762",
	publisher     = "{ACM}",
	title         = "{Comparing click-through data to purchase decisions for retrieval evaluation}",
	year          = 2010,
}