Visual Database Systems, II. Proceedings of the IFIP TC2/WG 2.6 Second Working Conference on Visual Database Systems. Budapest, Hungary, 30 September

Elöd Knuth Lutz Michael Wegner Visual Database Systems, II. Proceedings of the IFIP TC2/WG 2.6 Second Working Conference on Visual Database Systems. Budapest, Hungary, 30 September - 3 October 1991 IFIP Transactions A-7 North-Holland VDB 1992 0-444-89609-0 db/conf/vdb/vdb91.html