KALK, Wolf-Dieter; HÜLSBERGEN, Kurt-Jürgen. DiesIkraftstoffeinsatz in der Pflanzenproduktion. agricultural engineering.eu, [S. l.], v. 54, n. 6, p. 332–333, 1999. DOI: 10.15150/lt.1999.2162. Disponível em: http://195.37.233.11/landtechnik/article/view/1999-54-6-332-333. Acesso em: 1 mai. 2024.