@inproceedings{TOOLS-EUROPE-1992-BuddeCSZ,
	author        = "Reinhard Budde and Marie-Luise Christ-Neumann and Karl-Heinz Sylla and Heinz Züllighoven",
	booktitle     = "{Proceedings of the Seventh International Conference on Technology of Object-Oriented Languages and Systems}",
	isbn          = "0-13-917436-2",
	pages         = "135--146",
	publisher     = "{Prentice Hall}",
	title         = "{Tools and Materials: an Analysis and Design Metaphor}",
	year          = 1992,
}