Breuer, Jonas, Nils Walravens, and Pieter Ballon. “Beyond Defining the Smart City. Meeting Top-Down and Bottom-Up Approaches in the Middle”. TeMA - Journal of Land Use, Mobility and Environment (May 12, 2014). Accessed May 4, 2024. http://www.serena.unina.it/index.php/tema/article/view/2475.