@inproceedings{SIGIR-1988-FoxNL,
	author        = "Edward A. Fox and Gary L. Nunn and Whay C. Lee",
	booktitle     = "{Proceedings of the 11th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	cdrom         = "SIGIR1988/P291.pdf",
	doi           = "10.1145/62437.62465",
	isbn          = "2-7061-0309-4",
	pages         = "291--307",
	publisher     = "{ACM}",
	title         = "{Coefficients for Combining Concept Classes in a Collection}",
	year          = 1988,
}