Ostapenko O, Leshchenko V, Tikhonenko R. Energy efficiency of energy supply systems, based on combined cogeneration heat pump installations. Scientific Works of Vinnytsia National Technical University [інтернет]. 02, Березень 2016 [цит. за 20, Травень 2026];(4). доступний у: https://works.vntu.edu.ua/index.php/works/article/view/451