Handbook of Smart Cities ISBN: 9783030151454 UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Callaghan, V, Chin, J, Doctor, F, Kymäläinen, T, Peña-Rios, A, Phengdy, C, Reyes-Munoz, A, Tisan, A, Wang, M, Wu, H Y, Zamudio, V, Zhang, S & Zheng, P 2021, Journeys in the Age of Smart Cities : Some Fresh Perspectives . in J C Augusto (ed.), Handbook of Smart Cities . Springer, pp. 1-39 . https://doi.org/10.1007/978-3-030-15145-4_62-2