@inproceedings{HCI-SHI-1993-GodbertPS,
	author        = "Elizabeth Godbert and Robert Pasero and Paul Sabatier",
	booktitle     = "{Proceedings of the Fifth International Conference on Human-Computer Interaction. Volume 2: Software and Hardware Interfaces}",
	isbn          = "0-444-89540-X",
	pages         = "385--390",
	publisher     = "{Elsevier}",
	title         = "{Natural Language Interfaces: Specifying and Using Conceptual Constraints}",
	year          = 1993,
}