Geletukha, G., T. Zheliezna, P. Kucheruk, Ye. Oliinyk, and O. Tryboi. “BIOENERGY IN UKRAINE: STATE OF THE ART AND PROSPECTS FOR DEVELOPMENT. PART 1”. Thermophysics and Thermal Power Engineering 37, no. 2 (December 16, 2014): 68-76. Accessed January 28, 2022. http://ihe.nas.gov.ua/index.php/journal/article/view/222.