APA (7th ed.) Citation

Sharifi, A., Allam, Z., Feizizadeh, B., & Ghamari, H. (2021). Three Decades of Research on Smart Cities: Mapping Knowledge Structure and Trends. Sustainability, 13(13), 7140. https://doi.org/10.3390/su13137140

Chicago Style (17th ed.) Citation

Sharifi, Ayyoob, Zaheer Allam, Bakhtiar Feizizadeh, and Hessam Ghamari. "Three Decades of Research on Smart Cities: Mapping Knowledge Structure and Trends." Sustainability 13, no. 13 (2021): 7140. https://doi.org/10.3390/su13137140.

MLA (9th ed.) Citation

Sharifi, Ayyoob, et al. "Three Decades of Research on Smart Cities: Mapping Knowledge Structure and Trends." Sustainability, vol. 13, no. 13, 2021, p. 7140, https://doi.org/10.3390/su13137140.