Ostapenko, O. (2016) «ENERGY EFFICIENCY OF ENERGY SUPPLY SYSTEMS, BASED ON COMBINED COGENERATION HEAT PUMP INSTALLATIONS АND PEAK SOURCES OF HEAT», Scientific Works of Vinnytsia National Technical University, (1). доступний у: https://works.vntu.edu.ua/index.php/works/article/view/462 (дата звернення: 28Квітень2026).