@inproceedings{SIGMOD-2011-ZhangZD,
	author        = "Mingyang Zhang and Nan Zhang and Gautam Das",
	booktitle     = "{Proceedings of the 29th ACM SIGMOD International Conference on Management of Data}",
	doi           = "10.1145/1989323.1989406",
	isbn          = "978-1-4503-0661-4",
	pages         = "793--804",
	publisher     = "{ACM}",
	title         = "{Mining a search engine’s corpus: efficient yet unbiased sampling and aggregate estimation}",
	year          = 2011,
}