1. Nam, T., Pardo, T.A.: Conceptualizing smart city with dimensions of technology, people, and institutions. The Proceedings of the 12th Annual International Conference on Digital Government Research.Challenging Times—dg.o ’11, p 282 (2011)
2. Kehoe, M., Nesbitt, P.: Smarter cities series : a foundation for understanding IBM smarter cities. IBM J. Res. Dev. (2010)
3. Caragliu, A., Del Bo, C., Nijkamp, P.: Smart Cities in Europe. J. Urban Technol. 18(2), 65–82 (2011)
4. Lathia, N., Quercia, D., Crowcroft, J.: The hidden image of the city: sensing community well-being from urban mobility. Pervasive Comput., 1–8 (2012)
5. Resch, B., Summa, A., Sagl, G., Zeile, P., Exner, J.: Urban emotions—geo-semantic emotion extraction from technical sensors, human sensors and crowdsourced data. In: Gartner, G., Haosheng, H. (eds.) Progress in Location-Based Services, pp. 199–212. Springer International Publishing, Switzerland (2014)