@inproceedings{CIKM-2009-MeijWR,
	author        = "Edgar Meij and Wouter Weerkamp and Maarten de Rijke",
	booktitle     = "{Proceedings of the 18th ACM International Conference on Information and Knowledge Management}",
	doi           = "10.1145/1645953.1646261",
	isbn          = "978-1-60558-512-3",
	pages         = "1903--1906",
	publisher     = "{ACM}",
	title         = "{A query model based on normalized log-likelihood}",
	year          = 2009,
}