Escaping from ancient Rome! Applications and challenges for designing smart cities. - Taewook Heo; Kwangsoo Kim; Hyunhak Kim; Changwon Lee; Jae Hong Ryu; Youn Taik Leem; Jong Arm Jun; Chulsik Pyo; Seung-Mok Yoo; JeongGil Ko (Trans. Emerg. Telecommun. Technol., 2014)