GJAE. Wirtschaftszahlen. German Journal of Agricultural Economics, [S. l.], v. 69, n. 2, 2020. DOI: 10.52825/gjae.v69i2.2178. Disponível em: https://www.tib-op.org/ojs/index.php/gjae/article/view/2178. Acesso em: 23 nov. 2024.