@inproceedings{SEKE-1993-BiebowS,
	author        = "Brigitte Biebow and Sylvie Szulman",
	booktitle     = "{Proceedings of the Fifth International Conference on Software Engineering and Knowledge Engineering}",
	pages         = "109--116",
	publisher     = "{Knowledge Systems Institute}",
	title         = "{Acquisition, Analysis and Validation of Informal Requirements}",
	year          = 1993,
}