HERRMANN, Klaus. Meilensteine der Landtechnik. agricultural engineering.eu, [S. l.], v. 63, n. 2, p. 112–113, 2008. DOI: 10.15150/lt.2008.794. Disponível em: http://195.37.233.11/landtechnik/article/view/2008-63-2-112-113. Acesso em: 6 mai. 2024.