Ostapenko O. SPHERES OF ENERGY EFFICIENT OPERATION OF ENERGY SUPPLY SYSTEMS WITH COGENERATION-HEAT PUMP INSTALLATIONS АND PEAK SOURCES OF HEAT. SWVNTU [інтернет]. 13, Грудень 2016 [цит. за 28, Травень 2026];(3). доступний у: https://works.vntu.edu.ua/index.php/works/article/view/479