HERRMANN, Klaus. Meilensteine der Landtechnik. agricultural engineering.eu, [S. l.], v. 64, n. 1, p. 64–66, 2009. DOI: 10.15150/lt.2009.916. Disponível em: https://www.agricultural-engineering.eu/landtechnik/article/view/2009-64-1-064-066. Acesso em: 25 apr. 2024.