1. World Commission on Environment and Development. (1987). Our common future, from one earth to one world. United Nations, Oxford University Press.
2. United Nations. (2015). Transforming our world: The 2030 Agenda for Sustainable Development. Resolution adopted by the General Assembly on 25 September 2015.
3. United Nations. (2016). Report of the Inter-agency and Expert Group on Sustainable Development Goal Indicators. United Nations, Economic and Social Council. Available at https://unstats.un.org/unsd/statcom/48th-session/documents/2017-2-IAEG-SDGs-E.pdf. Accessed 20th Feb 2023.
4. Leviäkangas, P. & Ahonen, V. (2021). The evolution of smart and intelligent mobility: A semantic and conceptual analysis. International Journal of Technology, 12(5).
5. Committee On Employment and Social Affairs. (2020). Social sustainability. Concepts and benchmarks. European Parliament.