@inproceedings{PODS-2005-HershbergerSST,
	author        = "John Hershberger and Nisheeth Shrivastava and Subhash Suri and Csaba D. Tóth",
	booktitle     = "{Proceedings of the 24th Symposium on Principles of Database Systems}",
	doi           = "10.1145/1065167.1065211",
	isbn          = "1-59593-062-0",
	pages         = "338--347",
	publisher     = "{ACM}",
	title         = "{Space complexity of hierarchical heavy hitters in multi-dimensional data streams}",
	year          = 2005,
}