@inproceedings{CAiSE-1995-OpdahlS,
	author        = "Andreas L. Opdahl and Guttorm Sindre",
	booktitle     = "{Proceedings of the Seventh International Conference on Advanced Information Systems Engineering}",
	doi           = "10.1007/3-540-59498-1_237",
	isbn          = "3-540-59498-1",
	pages         = "54--67",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Facet Models for Problem Analysis}",
	volume        = 932,
	year          = 1995,
}