GJAE. Wirtschaftszahlen. German Journal of Agricultural Economics, [S. l.], v. 65, n. 3, 2016. DOI: 10.52825/gjae.v65i3.2034. Disponível em: https://www.tib-op.org/ojs/index.php/gjae/article/view/2034. Acesso em: 22 dec. 2024.