J. Yuan, H. Xie, D. Yang, X. Xiahou, M. J. Skibniewski, and W. Huang, “Strategy formulation for the sustainable development of smart cities: a case study of Nanjing, China”, IJSPM, vol. 24, no. 6, pp. 379–399, Oct. 2020, doi: 10.3846/ijspm.2020.13345.