HARTMANN, Hans; BÖHM, Thorsten. Qualitätsmerkmale biogener Festbrennstoffe. agricultural engineering.eu, [S. l.], v. 53, n. 3, p. 134–135, 1998. DOI: 10.15150/lt.1998.2413. Disponível em: https://www.agricultural-engineering.eu/landtechnik/article/view/1998-53-3-134-135. Acesso em: 18 apr. 2024.