Smart Cities, Green Technologies and Intelligent Transport Systems 7th International Conference, SMARTGREENS, and 4th International Conference, VEHITS 2018, Funchal-Madeira, Portugal, March 16-18, 2018 : revised selected papers - Donnellan, Brian; Klein, Cornel; Helfert, Markus 1970-; Gusikhin, Oleg (Springer, 2019)