Ostapenko, O. (2017) «SPHERES OF ENERGY EFFICIENT OPERATION 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, (4). доступний у: https://works.vntu.edu.ua/index.php/works/article/view/487 (дата звернення: 20Червень2026).