Brian Donnellan, Cornel Klein, Markus Helfert, Oleg Yu. Gusikhin, António M. Pascoal: 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. Communications in Computer and Information Science 921, Springer 2019, ISBN 978-3-030-02906-7