[1]
Крижанівський, Є.І. 2015. Scientific and Organizational Principles of Increasing of Extraction of Domestic Oil and Gas and Diversification of Energy Resources Supply for Improving Energy Security of Ukraine. Scientific Bulletin of Ivano-Frankivsk National Technical University of Oil and Gas (Series: Economics and Management in the Oil and Gas Industry). 2, 12 (Sep. 2015), 7–14.