@inproceedings{CAiSE-1990-TsalgatidouKL,
	author        = "Aphrodite Tsalgatidou and V. Karakostas and Pericles Loucopoulos",
	booktitle     = "{Proceedings of the Second Nordic Conference on Advanced Information Systems Engineering}",
	doi           = "10.1007/BFb0000596",
	isbn          = "3-540-52625-0",
	pages         = "251--263",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Rule-Based Requirements Specification and Validation}",
	volume        = 436,
	year          = 1990,
}