@inproceedings{VDME-1991-Krieg-BrucknerKLT,
	author        = "Bernd Krieg-Brückner and Einar W. Karlsen and Junbo Liu and Owen Traynor",
	booktitle     = "{Proceedings of the Fourth International Symposium on Vienna Development Method: Formal Software Development. Volume 2: Tutorials}",
	doi           = "10.1007/BFb0020000",
	isbn          = "3-540-54868-8",
	pages         = "363--397",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{The PROSPECTRA Methodology and System: Uniform Transformational (Meta-) Development}",
	volume        = 552,
	year          = 1991,
}