@inproceedings{SIGIR-1987-KantorBDS,
	author        = "Paul B. Kantor and Abraham Bookstein and Martin Dillon and Tefko Saracevic",
	booktitle     = "{Proceedings of the 10th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	isbn          = "0-89791-232-2",
	pages         = "316",
	publisher     = "{ACM}",
	title         = "{Clustering of Concepts for Optimal Retrieval}",
	year          = 1987,
}