STEPANOVA, A. THE ANALYZIS OF EFFICIENCY AND OPTIMIZATION OF COMBINED DEVICE FOR THERMOUTILYZING BOILER SYSTEM. Energy and Automation, [S. l.], n. 1, 2016. Disponível em: https://journals.nubip.edu.ua/index.php/Energiya/article/view/5836. Acesso em: 11 feb. 2026.