GJAE. Koester, Ulrich (2010): Grundzüge der landwirtschaftlichen Marktlehre. German Journal of Agricultural Economics, [S. l.], v. 61, n. 3, 2012. DOI: 10.52825/gjae.v61i3.1881. Disponível em: https://www.tib-op.org/ojs/index.php/gjae/article/view/1881. Acesso em: 25 nov. 2024.