Романюк ЮФ, Коломойцев КВ. ENHANCEMENT OF ECONOMIC EFFICIENCY OF STEP-DOWN SUBSTATION TRANSFORMER OPERATION AT OIL AND GAS INDUSTRY ENTERPRISES. ogpe [Internet]. 2014 Oct. 13 [cited 2024 Nov. 21];(2(22):71-5. Available from: https://nge.nung.edu.ua/index.php/nge/article/view/321