Wawryniuk, Katarzyna, and Krzysztof Biernat. “Membrane-Based Techniques for Biomethane Production from Biogas”. Studia Ecologiae et Bioethicae 13, no. 4 (September 20, 2016): 197–219. Accessed April 26, 2024. https://czasopisma.uksw.edu.pl/index.php/seb/article/view/67.