EDER, Johann; ROZMAN, Ivan; WELZER-DRUŽOVEC, Tatjana. Advances in databases and information systems - ABDIS'99 : third East-European conference, Maribor - Slovenia, September 13-16, 1999 : proceedings of short papers. Maribor : Faculty of Electrical Engineering and Computer Science, [1999]. 232 str.. ISBN 86-435-0285-5.