Apazhev, A K, A G Fiapshev, O Kh Kilchukova, Y A Shekikhachev, L M Khazhmetov, and M M Khamokov. “Thermal Processes in a Biogas Plant for the Disposal of Agricultural Waste”. KnE Life Sciences 4, no. 14 (November 25, 2019): 40-50. Accessed February 20, 2020. https://knepublishing.com/index.php/KnE-Life/article/view/5578.