1. Abad-Segura, E., Fuente, A. B. D. L., González-Zamar, M.-D., & Belmonte-Ureña, L. J. (2020). Effects of circular economy policies on the environment and sustainable growth: worldwide research. Sustainability, 12(14), 5792. https://doi.org/10.3390/su12145792
2. Abdulhakimogullari, E., Sezer, O., & Akpinar, M. (2011). The development of right to environment as a human right at the global national and local level. Journal of Suleyman Demirel University Institute of Social Sciences, Number, 14, 61–88.
3. Bucsky, P. (2020). Modal share changes due to COVID-19: The case of Budapest. TRIP: Transportation Research Interdisciplinary Perspectives. https://doi.org/10.1016/j.trip.2020.100141
4. BP. (2019). Statistical Review of World Energy. 12 July, 2021, https://www.bp.com/content/dam/bp/business-sites/en/global/corporate/pdfs/energy-economics/statistical-review/bp-stats-review-2019-full-report.pdf.
5. Brown, M. A. (2008). Shrinking the carbon footprint of metropolitan America. Brookings Institute Metropolitan Policy Program.