Samarina, Vera, Tatiana Skufina, Аlexander Samarin, and Denis Ushakov. “Alternative Energy Sources: Opportunities, Experience and Prospects of the Russian Regions in the Context of Global Trends”. International Journal of Energy Economics and Policy 8, no. 2 (March 20, 2018): 140–147. Accessed November 24, 2024. https://econjournals.com/index.php/ijeep/article/view/6273.