@inproceedings{ESOP-1998-HenselHJT,
	author        = "Ulrich Hensel and Marieke Huisman and Bart Jacobs and Hendrik Tews",
	booktitle     = "{Proceedings of the Seventh European Symposium on Programming}",
	doi           = "10.1007/BFb0053566",
	editor        = "Chris Hankin",
	isbn          = "3-540-64302-8",
	pages         = "105--121",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Reasonong about Classess in Object-Oriented Languages: Logical Models and Tools}",
	volume        = 1381,
	year          = 1998,
}