FUNK, P. V.; BAUER, D. J. . The Promise and Realities of Biogas Produced from Landfills and Farm Waste. Distributed Generation & Alternative Energy Journal, [S. l.], v. 25, n. 2, p. 44–51, 2010. DOI: 10.13052/dgaej2156-3306.2524. Disponível em: https://journals.riverpublishers.com/index.php/DGAEJ/article/view/14135. Acesso em: 22 apr. 2026.