BRÜGGEMANN, Carsten. Trends bei Biobrennstoffen. agricultural engineering.eu, [S. l.], v. 62, n. 6, p. 394–395, 2007. DOI: 10.15150/lt.2007.1023. Disponível em: https://www.agricultural-engineering.eu/landtechnik/article/view/2007-62-6-394-395. Acesso em: 27 apr. 2024.