@inproceedings{TOOLS-EUROPE-2001-SnoeckD01a,
	author        = "Monique Snoeck and Guido Dedene",
	booktitle     = "{Proceedings of the 38th International Conference on Technology of Object-Oriented Languages and Systems}",
	doi           = "10.1109/TOOLS.2001.911769",
	isbn          = "0-7695-1095-7",
	pages         = "170--179",
	publisher     = "{IEEE Computer Society}",
	title         = "{Core Modelling Concepts in Object-Oriented Conceptual Modelling}",
	year          = 2001,
}