KORNMANN, Marek; KÖLLER, Karlheinz. Direktsaat von Mais. agricultural engineering.eu, [S. l.], v. 52, n. 4, p. 178–179, 1997. DOI: 10.15150/lt.1997.2605. Disponível em: https://www.agricultural-engineering.eu/landtechnik/article/view/1997-52-4-178-179. Acesso em: 26 apr. 2024.