@inproceedings{PODS-1986-SagivS,
	author        = "Yehoshua Sagiv and Oded Shmueli",
	booktitle     = "{Proceedings of the Fifth Symposium on Principles of Database Systems}",
	doi           = "10.1145/6012.15413",
	isbn          = "0-89791-179-2",
	pages         = "160--172",
	publisher     = "{ACM}",
	title         = "{The Equivalence of Solving Queries and Production Tree Projections}",
	year          = 1986,
}