GJAE. Wirtschaftszahlen. German Journal of Agricultural Economics, [S. l.], v. 68, n. 3, 2019. DOI: 10.52825/gjae.v68i3.2138. Disponível em: https://www.tib-op.org/ojs/index.php/gjae/article/view/2138. Acesso em: 23 nov. 2024.