@inproceedings{NACLP-1989-HeED,
	author        = "Xiaoping He and George W. Ernst and Fred Discenzo",
	booktitle     = "{Proceedings of the North American Conference on Logic Programming, 2 Volumes}",
	isbn          = "0-262-62064-2",
	pages         = "209--223",
	publisher     = "{MIT Press}",
	title         = "{An Expert System which Intelligently Accesses an External Database}",
	year          = 1989,
}