@inproceedings{SIGIR-2005-MetzlerC,
	author        = "Donald Metzler and W. Bruce Croft",
	booktitle     = "{Proceedings of the 28th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/1076034.1076115",
	isbn          = "1-59593-034-5",
	pages         = "472--479",
	publisher     = "{ACM}",
	title         = "{A Markov random field model for term dependencies}",
	year          = 2005,
}