ЗАПУХЛЯК, І. Б. Functioning of Domestic Gas Transporting Enterprises as a Natural Monopoly: Economic Essence and Objective Need. 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. 12, p. 23–28, 2015. Disponível em: https://eung.nung.edu.ua/index.php/ecom/article/view/111. Acesso em: 28 apr. 2024.