Helle L. Christensen, Mads L. Haslund, Henrik N. Nielsen, Nectaria Tryfona. Operations for Conceptual Schema Manipulation: Definitions and Semantics. In Albertas Caplinskas, Johann Eder, editors, Advances in Databases and Information Systems, 5th East European Conference, ADBIS 2001, Vilnius, Lithuania, September 25-28, 2001, Proceedings. Volume 2151 of Lecture Notes in Computer Science, pages 225-238, Springer, 2001. [doi]
Abstract is missing.