@inproceedings{SEKE-2004-Flake,
	author        = "Stephan Flake",
	booktitle     = "{Proceedings of the 16th International Conference on Software Engineering and Knowledge Engineering}",
	isbn          = "1-891706-14-4",
	pages         = "161--166",
	title         = "{Enhancing the Message Concept of the Object Constraint Language}",
	year          = 2004,
}