Martin Gogolla, Mark Richters
On Constraints and Queries in UML
UML, 1997.
@inproceedings{UML-1997-GogollaR,
author = "Martin Gogolla and Mark Richters",
booktitle = "{The Unified Modeling Language — Technical Aspects and Applications}",
isbn = "3-7908-1105-X",
pages = "109--121",
publisher = "{Physica-Verlag}",
title = "{On Constraints and Queries in UML}",
year = 1997,
}