@inproceedings{SIGIR-2004-MetzlerLC,
	author        = "Donald Metzler and Victor Lavrenko and W. Bruce Croft",
	booktitle     = "{Proceedings of the 27th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/1008992.1009110",
	isbn          = "1-58113-881-4",
	pages         = "540--541",
	publisher     = "{ACM}",
	title         = "{Formal multiple-bernoulli models for language modeling}",
	year          = 2004,
}