Samarina V, Skufina T, Samarin Аlexander, Ushakov D. Alternative energy sources: opportunities, experience and prospects of the Russian regions in the context of global trends. IJEEP [Internet]. 2018 Mar. 20 [cited 2024 May 3];8(2):140-7. Available from: https://www.econjournals.com/index.php/ijeep/article/view/6273