Fabio Grandi Introductory Editorial 1-2 2014 Open Journal of Databases (OJDB) 1 1 https://www.ronpub.com/ojdb/OJDB-v1i1n01_Grandi.html http://nbn-resolving.de/urn:nbn:de:101:1-201705194557 urn:nbn:de:101:1-201705194557 RonPub UG (haftungsbeschränkt)