Гораль, Л. Т., and М. І. Прокопів. “Modern Objectives of Ukraine Energy Security under Global Challenges”. Scientific Bulletin of Ivano-Frankivsk National Technical University of Oil and Gas (Series: Economics and Management in the Oil and Gas Industry) 2, no. 10 (December 17, 2014): 68–72. Accessed December 4, 2024. https://eung.nung.edu.ua/index.php/ecom/article/view/169.