1. 1) 国土交通省都市局. スマートシティの実現に向けて【中間とりまとめ】, 2018 年8 月.
2. 2) Washburn, Sindhu, Balaouras (2010), Dines, Hayes, Nelson, “Helping CIOs Understand “Smart City” Initiatives: Defining the Smart City, Its Drivers, and the Roleof the CIO”, Cambridge, MA: Forrester Research, Inc.
3. 3) UNECE, Sustainable Smart Cities,https://unece.org/housing/sustainable- smart-cities, 入手日付：2022 年11 月10 日.
4. 4) H. Spencer Banzhaf(2021), Difference-in-Differences Hedonics, Journal of Political Economy, Vol. 129, No. 8, pp. 2385-2414.
5. 5) Giffinger, Rudolf, Gudrun, Haindlmaier (2010), Smart cities ranking: an effective instrument for the positioning of the cities?, Centre de Política del Sòl i Valoracions - Universitat Politècnica de Catalunya, pp.7-25