Кісь, С. Я. “The Review Of Problems, Preconditions and Economic Consequence of Intellectualization Processes in Oil and Gas Sector of Ukraine”. Scientific Bulletin of Ivano-Frankivsk National Technical University of Oil and Gas (Series: Economics and Management in the Oil and Gas Industry) 1, no. 13 (May 4, 2018): 18–29. Accessed April 27, 2024. https://eung.nung.edu.ua/index.php/ecom/article/view/44.