@inproceedings{SIGMOD-2004-ChaudhuriDS,
	author        = "Surajit Chaudhuri and Gautam Das and Utkarsh Srivastava",
	booktitle     = "{Proceedings of the 32nd ACM SIGMOD International Conference on Management of Data}",
	doi           = "10.1145/1007568.1007602",
	isbn          = "1-58113-859-8",
	pages         = "287--298",
	publisher     = "{ACM}",
	title         = "{Effective Use of Block-Level Sampling in Statistics Estimation}",
	year          = 2004,
}