@inproceedings{SIGIR-1986-Voorhees,
	author        = "Ellen M. Voorhees",
	booktitle     = "{Proceedings of the Ninth International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	cdrom         = "SIGIR1986/P164.pdf",
	doi           = "10.1145/253168.253203",
	isbn          = "0-89791-187-3",
	pages         = "164--174",
	publisher     = "{ACM}",
	title         = "{The Efficiency of Inverted Index and Cluster Searches}",
	year          = 1986,
}