OSTAPENKO, O. SPHERES OF HIGH ENERGY EFFICIENCY OF ENERGY SUPPLY SYSTEMS WITH COGENERATION-HEAT PUMP INSTALLATIONS OF SMALL POWER АND FUEL-FIRED BOILERS IN HEAT SUPPLY SYSTEMS. Scientific Works of Vinnytsia National Technical University, [S. l.], n. 1, p. 1–8, 2017. Disponível em: https://works.vntu.edu.ua/index.php/works/article/view/497. Acesso em: 29 mar. 2024.