SCHÖNFELDER, Gert. Ins Bild gesetzt. agricultural engineering.eu, [S. l.], v. 53, n. 4, p. 236–237, 1998. DOI: 10.15150/lt.1998.2393. Disponível em: http://195.37.233.11/landtechnik/article/view/1998-53-4-236-237. Acesso em: 8 mai. 2024.