XML-Based Data Management and Multimedia Engineering - EDBT 2002 Workshops : EDBT 2002 Workshops XMLDM, MDDE, and YRWS, Prague, Czech Republic, March 24-28, 2002, Revised Papers - Akmal B. Chaudhri, Rainer Unland, Chabane Djeraba, Wolfgang Lindner ((Lecture Notes in Computer Science))