Hannu Jaakkola, Bernhard Thalheim, Yasushi Kiyoki, Naofumi Yoshida: Information Modelling and Knowledge Bases XXVIII, 26th International Conference on Information Modelling and Knowledge Bases (EJC 2016), Tampere, Finland, June 6-10, 2016. Frontiers in Artificial Intelligence and Applications 292, IOS Press 2017, ISBN 978-1-61499-719-1