Лінчевська, Н. М. (2014) “Effectiveness of innovation and investment activities 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. 50–59. Available at: https://eung.nung.edu.ua/index.php/ecom/article/view/167 (Accessed: 19 April 2024).