ZWIEBEL, Siegfried. Moderne CA-Techniken in der Ausbildung. agricultural-engineering.eu, [S. l.], v. 56, n. SH2, p. 468–470, 2001. DOI: 10.15150/lt.2001.2133. Disponível em: https://www.agricultural-engineering.eu/landtechnik/article/view/2001-56-SH2-468-470. Acesso em: 28 märz. 2024.