MARTINEC, Milos; HARTUNG, Eberhard. Ökonomische Bewertung von Biofiltern. agricultural engineering.eu, [S. l.], v. 56, n. 5, p. 344–345, 2001. DOI: 10.15150/lt.2001.1804. Disponível em: https://www.agricultural-engineering.eu/landtechnik/article/view/2001-56-5-344-345. Acesso em: 19 apr. 2024.