Baltrėnas, Pranas, and Mindaugas Kvasauskas. “Experimental Investigation of Biogas Production Using Fatty Waste”. Journal of Environmental Engineering and Landscape Management 16, no. 4 (December 31, 2008): 178-187. Accessed November 23, 2024. https://bme.vgtu.lt/index.php/JEELM/article/view/6718.