TY - GEN A1 - Masunaga, Yoshifumi A1 - Pokorny, Jaroslav A1 - Stuller, Julius A1 - Thalheim, Bernhard T1 - Proceedings of challenges : 2000 ADBIS-DASFAA Symposium on advances in databases and information systems, Fourth East-European Conference on Advances in Databases and Ingformation Systems, Prague, Czech Republic, September 2000 KW - database KW - information systems Y1 - 2000 SN - 80-85863-56-1 PB - Matfyzpress CY - Prag ER -