Khalatov, A.A., N.M. Fialko, and N.P. Tymchenko. “ENERGY SECURITY OF UKRAINE: METHODOLOGICAL FOUNDATIONS FOR ASSESSING THE LEVEL OF SECURITY AND A COMPARATIVE ANALYSIS OF THE CURRENT STATE”. Thermophysics and Thermal Power Engineering 42, no. 2 (April 12, 2020): 18-30. Accessed July 6, 2026. https://ihe.nas.gov.ua/index.php/journal/article/view/387.