GAST, Michael. Zollkontingente bei US-amerikanischen Käseimporten. German Journal of Agricultural Economics, [S. l.], v. 51, n. 4, 2002. DOI: 10.52825/gjae.v51i4.1514. Disponível em: https://www.tib-op.org/ojs/index.php/gjae/article/view/1514. Acesso em: 23 dec. 2024.