Ostapenko, O. (2016) «ENERGY EFFICIENCY OF ENERGY SUPPLY SYSTEMS WITH COGENERATION HEAT PUMP INSTALLATIONS АND PEAK SOURCES OF HEAT IN HEAT SUPPLY SYSTEMS», Scientific Works of Vinnytsia National Technical University, (2). доступний у: https://works.vntu.edu.ua/index.php/works/article/view/472 (дата звернення: 7Травень2026).