@inproceedings{SIGIR-1998-Voorhees,
	author        = "Ellen M. Voorhees",
	booktitle     = "{Proceedings of the 21st International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	cdrom         = "SIGIR1998/P315.pdf",
	doi           = "10.1145/290941.291017",
	pages         = "315--323",
	publisher     = "{ACM}",
	title         = "{Variations in Relevance Judgments and the Measurement of Retrieval Effectiveness}",
	year          = 1998,
}