ГОРАЛЬ, Л. Т.; ПРОКОПІВ, М. І. 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), [S. l.], v. 2, n. 10, p. 68–72, 2014. Disponível em: https://eung.nung.edu.ua/index.php/ecom/article/view/169. Acesso em: 1 may. 2024.