@article{VLDB-2008-CormodeH,
	author        = "Graham Cormode and Marios Hadjieleftheriou",
	ee            = "http://www.vldb.org/pvldb/1/1454225.pdf",
	journal       = "{Proceedings of the VLDB Endowment}",
	number        = 2,
	pages         = "1530--1541",
	title         = "{Finding frequent items in data streams}",
	volume        = 1,
	year          = 2008,
}