LazaroiuaGCRosciabM (2012) Definition methodology for the Smart Cities Model. Energy47(1): 326–332.
2.
LicciardiGAmirtahmasebiR (2012) The Economics of Uniqueness: Historic Cities and Cultural Heritage Assets as Public Goods. Washington DC: World Bank. DOI: 10.1596/978-0-8213-9650-6.