KOLLER, J. Treatment of Biogas for Use as Energy. Acta Polytechnica, Prague, Czech Republic, v. 50, n. 2, 2010. DOI: 10.14311/1173. Disponível em: https://ojs.cvut.cz/ojs/index.php/ap/article/view/1173. Acesso em: 5 apr. 2025.