1. United Nations (2015). Transforming Our World: The 2030 Agenda for Sustainable Development A/RES/70/1, United Nations. Available online: https://www.un.org/en/development/desa/population/migration/generalassembly/docs/globalcompact/A_RES_70_1_E.pdf.
2. United Nations (2017). The Sustainable Development Goals Report 2017, United Nations. Available online: https://www.undp.org/publications/un-sustainable-development-goals-report-2017.
3. Leicht, A., Heiss, J., and Byun, W.J. (2018). Issues and Trends in Education for Sustainable Development, UNESCO. Available online: https://en.unesco.org/sites/default/files/issues_0.pdf.
4. Rieckmann, M.E. (2017). Education for Sustainable Development Goals: Learning Objectives, UNESCO. Available online: https://www.unesco.de/sites/default/files/2018-08/unesco_education_for_sustainable_development_goals.pdf.
5. Adapting the Sustainable Development Goals and the New Urban Agenda to the City level: Initial reflections from a comparative research project;Valencia;Int. J. Urban Sustain. Dev.,2019