Романюк, Ю. Ф., & Коломойцев, К. В. (2014). ENHANCEMENT OF ECONOMIC EFFICIENCY OF STEP-DOWN SUBSTATION TRANSFORMER OPERATION AT OIL AND GAS INDUSTRY ENTERPRISES. Oil and Gas Power Engineering, (2(22), 71–75. Retrieved from https://nge.nung.edu.ua/index.php/nge/article/view/321