@inproceedings{SIGMOD-2006-SpiegelP,
	author        = "Joshua Spiegel and Neoklis Polyzotis",
	booktitle     = "{Proceedings of the 24th ACM SIGMOD International Conference on Management of Data}",
	doi           = "10.1145/1142473.1142497",
	isbn          = "1-59593-256-9",
	pages         = "205--216",
	publisher     = "{ACM}",
	title         = "{Graph-based synopses for relational selectivity estimation}",
	year          = 2006,
}