@inproceedings{PODS-1994-ChaudhuriK,
	author        = "Surajit Chaudhuri and Phokion G. Kolaitis",
	booktitle     = "{Proceedings of the 13th Symposium on Principles of Database Systems}",
	doi           = "10.1145/182591.182602",
	isbn          = "0-89791-642-5",
	pages         = "86--96",
	publisher     = "{ACM Press}",
	title         = "{Can Datalog be Approximated?}",
	year          = 1994,
}