Herman Balsters Bert O. de Brock Stefan Conrad Database Schema Evolution and Meta-Modeling, 9th International Workshop on Foundations of Models and Languages for Data and Objects, FoMLaDO/DEMM 2000, Dagstuhl Castle, Germany, September 18-21, 2000, Selected Papers FMLDO Lecture Notes in Computer Science 2065 Springer 2001 3-540-42272-2 db/conf/fmldo/fmldo2000.html