@inproceedings{SIGMOD-2000-GunopulosKTD,
	author        = "Dimitrios Gunopulos and George Kollios and Vassilis J. Tsotras and Carlotta Domeniconi",
	booktitle     = "{Proceedings of the 30th ACM SIGMOD International Conference on Management of Data}",
	doi           = "10.1145/342009.335448",
	isbn          = "1-58113-217-4",
	pages         = "463--474",
	publisher     = "{ACM}",
	title         = "{Approximating Multi-Dimensional Aggregate Range Queries over Real Attributes}",
	year          = 2000,
}