Dursun, Erdal. “The Nexus Among Civil Aviation, Energy Performance Efficiency and GDP in Terms of Ecological Footprint: Evidence from France and Finland”. International Journal of Energy Economics and Policy 12, no. 5 (September 27, 2022): 243–251. Accessed January 8, 2025. https://econjournals.com/index.php/ijeep/article/view/13399.