Chikunov, Sergey O., Vadim V. Ponkratov, Alexander A. Sokolov, Andrey S. Pozdnyaev, Irina V. Osinovskaya, and Marina I. Ivleva. “Financial Risks of Russian Oil Companies in Conditions of Volatility of Global Oil Prices”. International Journal of Energy Economics and Policy 9, no. 3 (April 8, 2019): 18–29. Accessed November 12, 2024. https://econjournals.net.tr/index.php/ijeep/article/view/7358.