Stéphane Bressan David Taniar Gabriele Kotsis Ismail Khalil Ibrahim iiWAS'2004 - The sixth International Conference on Information Integrationand Web-based Applications Services, 27-29 September 2004, Jakarta, Indonesia iiWAS 183 books@ocg.at 2004 Austrian Computer Society 3-902134-72-0 db/conf/iiwas/iiwas2004.html