Current Issues in Databases and Information Systems : East-European Conference on Advances in Databases and Information Systems Held Jointly with International Conference on Database Systems for Advanced Applications, ADBIS-DASFAA 2000 Prague, Czech Republic, September 5-9, 2000 Proceedings - Július .tuller, Jaroslav Pokorný, Bernhard Thalheim, Yoshifumi Masunaga ((Lecture Notes in Computer Science))