@inproceedings{PODS-1994-OhoriT,
	author        = "Atsushi Ohori and Keishi Tajima",
	booktitle     = "{Proceedings of the 13th Symposium on Principles of Database Systems}",
	doi           = "10.1145/182591.182623",
	isbn          = "0-89791-642-5",
	pages         = "255--266",
	publisher     = "{ACM Press}",
	title         = "{A Polymorphic Calculus for Views and Object Sharing}",
	year          = 1994,
}