Vlasenko, Olha, Oleksandr Nedbailo, Iryna Kovalchuk, and Oscar Balanda. “Comprehensive Calculation Analysis of the Use of Biogas As Fuel for the ‘Invest’ Steam Boiler”. International Science Journal of Engineering & Agriculture 5, no. 1 (February 1, 2026): 8–19. Accessed February 3, 2026. https://isg-journal.com/isjea/article/view/1138.