@inproceedings{RE-1983-FlorekS,
	author        = "Siegfried Florek and H.-J. Schneider",
	booktitle     = "{Proceedings of the Workshop (Arbeitstagung) on Requirements Engineering}",
	isbn          = "3-540-12692-9",
	pages         = "15--28",
	publisher     = "{Springer-Verlag}",
	series        = "{Informatik-Fachberichte}",
	title         = "{Zielgerichtetes und regelgesteuertes Problemlösen mit der Requirements-Engineering Methodologie IBIS}",
	volume        = 74,
	year          = 1983,
}