Ostapenko, Olga, і Olexandre Slobodianiuk. 2015. «ENERGY, ECOLOGICAL AND ECONOMIC EFFICIENCY OF STEAM COMPRESSOR HEAT PUMP PLANTS AS COMPARED WITH ALTERNATIVE SOURCES OF HEAT SUPPLY». Scientific Works of Vinnytsia National Technical University, вип. 2 (Листопад). https://works.vntu.edu.ua/index.php/works/article/view/412.