Axel Wienberg Matthias Ernst Andreas Gawecki Olaf Kummer Frank Wienberg Joachim W. Schmidt Content Schema Evolution in the CoreMedia<sup>®</sup>; Content Application Platform CAP. 712-721 2002 conf/edbt/2002 EDBT http://dx.doi.org/10.1007/3-540-45876-X_44 db/conf/edbt/edbt2002.html#WienbergEGKWS02