@inproceedings{PODS-2009-GottlobLV,
	author        = "Georg Gottlob and Stephanie Tien Lee and Gregory Valiant",
	booktitle     = "{Proceedings of the 28th Symposium on Principles of Database Systems}",
	doi           = "10.1145/1559795.1559804",
	isbn          = "978-1-60558-553-6",
	pages         = "45--54",
	publisher     = "{ACM}",
	title         = "{Size and treewidth bounds for conjunctive queries}",
	year          = 2009,
}