GJAE. Wirtschaftszahlen. German Journal of Agricultural Economics, [S. l.], v. 68, n. 1, 2019. DOI: 10.52825/gjae.v68i1.2125. Disponível em: https://www.tib-op.org/ojs/index.php/gjae/article/view/2125. Acesso em: 22 nov. 2024.