KOESTER, Ulrich; LOY, Jens-Peter. Einleitung. German Journal of Agricultural Economics, [S. l.], v. 68, n. Supplement2, 2019. DOI: 10.52825/gjae.v68iSupplement2.2154. Disponível em: https://www.tib-op.org/ojs/index.php/gjae/article/view/2154. Acesso em: 24 nov. 2024.