New Trends in Databases and Information Systems - Ivanovic, Mirjana; Baralis, Elena; Catania, Barbara; Cerquitelli, Tania; Dahanayake, Ajantha; Kirikova, Mārīte; Michiardi, Pietro; Saloun, Petr; Schewe, Klaus-Dieter; Thalheim, Bernhard (Springer International Publishing, 2016)