Ostapenko O. ENERGY EFFICIENCY OF ENERGY SUPPLY SYSTEMS, BASED ON COMBINED COGENERATION HEAT PUMP INSTALLATIONS АND PEAK SOURCES OF HEAT. SWVNTU [інтернет]. 10, Червень 2016 [цит. за 04, Липень 2026];(1). доступний у: https://works.vntu.edu.ua/index.php/works/article/view/462