МЕТОШОП, І. М. The main factors that affect on prospects of unconventional gas extractional in Ukraine. 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. 1, n. 11, p. 42–48, 2015. Disponível em: https://eung.nung.edu.ua/index.php/ecom/article/view/140. Acesso em: 29 mar. 2024.