@inproceedings{SIGIR-2006-MacdonaldO,
	author        = "Craig Macdonald and Iadh Ounis",
	booktitle     = "{Proceedings of the 29th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/1148170.1148312",
	isbn          = "1-59593-369-7",
	pages         = "675--676",
	publisher     = "{ACM}",
	title         = "{Combining fields in known-item email search}",
	year          = 2006,
}