Ludger Becker, Hendrik Ditt, Klaus Hinrichs, Andreas Voigtmann. Constraints and Triggers: A Method for Ensuring Data Quality in an Object-Oriented Geo Database Kernel. In Claudia Bauzer Medeiros, editor, ACM-GIS 99, Proceedings of the 7th International Symposium on Advances in Geographic Information Systems, November 2-6, 1999, Kansas City, USA. pages 160-161, ACM, 1999. [doi]
Abstract is missing.