@inproceedings{CAiSE-1999-Wedemeijer,
	author        = "Lex Wedemeijer",
	booktitle     = "{Proceedings of the 11th International Conference on Advanced Information Systems Engineering}",
	doi           = "10.1007/3-540-48738-7_40",
	isbn          = "3-540-66157-3",
	pages         = "467--471",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Design the Flexibility, Maintain the Stability of Conceptual Schemas}",
	volume        = 1626,
	year          = 1999,
}