Ромашко, О. М. (2014) “Background of diversification of activity of gas transportation enterprises”, Scientific Bulletin of Ivano-Frankivsk National Technical University of Oil and Gas (Series: Economics and Management in the Oil and Gas Industry), 2(10), pp. 72–81. Available at: https://eung.nung.edu.ua/index.php/ecom/article/view/170 (Accessed: 22 December 2024).