@inproceedings{ILPS-1993-Shilcrat,
	author        = "Esther D. Shilcrat",
	booktitle     = "{Proceedings of the International Symposium on Logic Programming}",
	isbn          = "0-262-63152-0",
	pages         = "646",
	publisher     = "{MIT Press}",
	title         = "{Id Est, A Logic Based Framework for Direct Manipulation Systems}",
	year          = 1993,
}