VÁRALLYAY, György; LÁNG, István. The dual function of soil: natural resources and production site. Acta Agraria Debreceniensis, [S. l.], n. 1, p. 5–19, 2001. DOI: 10.34101/actaagrar/1/3580. Disponível em: https://ojs.lib.unideb.hu/actaagrar/article/view/3580.. Acesso em: 1 jul. 2024.