@inproceedings{VLDB-1995-HaasNSS,
	author        = "Peter J. Haas and Jeffrey F. Naughton and S. Seshadri and Lynne Stokes",
	booktitle     = "{Proceedings of the 21st International Conference on Very Large Data Bases}",
	ee            = "http://www.vldb.org/conf/1995/P311.PDF",
	isbn          = "1-55860-379-4",
	pages         = "311--322",
	publisher     = "{Morgan Kaufmann}",
	title         = "{Sampling-Based Estimation of the Number of Distinct Values of an Attribute}",
	year          = 1995,
}