Calin, Adrian, and Ioana Horodnic. “Determinants of CO2 Emissions and the Role of Renewable Energy in Romania”. Journal of Energy and Environmental Policy Options 6, no. 1 (March 1, 2023): 8–15. Accessed August 28, 2025. http://resdojournals.com/index.php/JEEPO/article/view/299.