SPIESS, Barbara; AUERNHAMMER, Hermann. Anpassung des Arbeitsvoranschlages an Klimazonen. agricultural engineering.eu, [S. l.], v. 53, n. 1, p. 40–41, 1998. DOI: 10.15150/lt.1998.2462. Disponível em: http://195.37.233.11/landtechnik/article/view/1998-53-1-040-041. Acesso em: 7 mai. 2024.