VENT, Wilhelm. Trennung mit Gewinn. agricultural engineering.eu, [S. l.], v. 55, n. 5, p. 344–345, 2000. DOI: 10.15150/lt.2000.1945. Disponível em: http://195.37.233.11/landtechnik/article/view/2000-55-5-344-345. Acesso em: 4 mai. 2024.