Smart Cities, Green Technologies, and Intelligent Transport Systems 6th International Conference, SMARTGREENS 2017, and Third International Conference, VEHITS 2017, Porto, Portugal, April 22-24, 2017, Revised Selected Papers - Donnellan, Brian; Donnellan, Brian; Klein, Cornel; Klein, Cornel; Helfert, Markus; Helfert, Markus; Gusikhin, Oleg; Gusikhin, Oleg; Pascoal, António; Pascoal, António (Springer International Publishing : Imprint: Springer, 2019)