VÁRALLYAY, G. Soil – Environment – Sustainability. Acta Agraria Debreceniensis, [S. l.], n. 49, p. 331–337, 2012. DOI: 10.34101/actaagrar/49/2554. Disponível em: https://ojs.lib.unideb.hu/actaagrar/article/view/2554. Acesso em: 14 jun. 2021.