@inproceedings{SIGIR-2012-Baeza-YatesM,
	author        = "Ricardo A. Baeza-Yates and Yoelle Maarek",
	booktitle     = "{Proceedings of the 35th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/2348283.2348531",
	isbn          = "978-1-4503-1472-5",
	pages         = "1181--1182",
	publisher     = "{ACM}",
	title         = "{(Big) usage data in web search}",
	year          = 2012,
}