Kis, H. R., & Bnо-Ayrian M. K. (2019). THEORETICAL ANALYSIS OF APPROACHES TO ORGANIZATION OF THE INTERACTION OF NEGOTIATION GROUPS OF COUNTRIES ON INTERNATIONAL ENERGY MARKETS. Scientific Bulletin of Ivano-Frankivsk National Technical University of Oil and Gas (Series: Economics and Management in the Oil and Gas Industry), (1(19), 21–30. https://doi.org/10.31471/2409-0948-2019-1(19)-21-30