HERRMANN, Klaus. Meilensteine der Landtechnik. agricultural engineering.eu, [S. l.], v. 56, n. 2, p. 108–109, 2001. DOI: 10.15150/lt.2001.1727. Disponível em: http://195.37.233.11/landtechnik/article/view/2001-56-2-108-109. Acesso em: 30 apr. 2024.