@inproceedings{SIGIR-1988-Das-Gupta,
	author        = "Padmini Das-Gupta",
	booktitle     = "{Proceedings of the 11th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	cdrom         = "SIGIR1988/P567.pdf",
	doi           = "10.1145/62437.62498",
	isbn          = "2-7061-0309-4",
	pages         = "567--581",
	publisher     = "{ACM}",
	title         = "{Rough Sets and Information Retrieval}",
	year          = 1988,
}