GJAE. Wirtschaftszahlen. German Journal of Agricultural Economics, [S. l.], v. 69, n. 4, 2020. DOI: 10.52825/gjae.v69i4.2192. Disponível em: https://www.tib-op.org/ojs/index.php/gjae/article/view/2192. Acesso em: 24 nov. 2024.