@inproceedings{SIGIR-1980-Bookstein,
	acmid         = "636672",
	author        = "Abraham Bookstein",
	booktitle     = "{Proceedings of the Joint BCS/ACM Symposium on Information Storage and Retrieval}",
	cdrom         = "SIGIR/1980/P023.pdf",
	isbn          = "408107758",
	pages         = "23--34",
	publisher     = "{Butterworths}",
	title         = "{A Comparison of Two Weighting Schemes for Boolean Retrieval}",
	year          = 1980,
}