@article{VLDB-2008-CohenK,
	author        = "Edith Cohen and Haim Kaplan",
	ee            = "http://www.vldb.org/pvldb/1/1453884.pdf",
	journal       = "{Proceedings of the VLDB Endowment}",
	number        = 1,
	pages         = "213--224",
	title         = "{Tighter estimation using bottom k sketches}",
	volume        = 1,
	year          = 2008,
}