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: http://195.37.233.11/landtechnik/article/view/1998-53-3-134-135. Acesso em: 6 mai. 2024.