Innovations for Community Services 18th International Conference, I4CS 2018, Žilina, Slovakia, June 18-20, 2018, Proceedings - Hodoň, Michal; Hodoň, Michal; Eichler, Gerald; Eichler, Gerald; Erfurth, Christian; Erfurth, Christian; Fahrnberger, Günter; Fahrnberger, Günter (Springer International Publishing : Imprint: Springer, 2018)