Ostapenko O, Shevchenko O, Bakum O. ENERGY EFFICIENCY OF HEAT PUMPING STATIONS WITH DIFFERENT HEAT SOURCES ON CONDITION OF VARIABLE OPERATION MODES. Scientific Works of Vinnytsia National Technical University [інтернет]. 25, Листопад 2015 [цит. за 28, Квітень 2026];(4). доступний у: https://works.vntu.edu.ua/index.php/works/article/view/394