VLASOV, V. Food problem and its solution. Acta Agraria Debreceniensis, [S. l.], n. 61, p. 19–23, 2014. DOI: 10.34101/actaagrar/61/2033. Disponível em: https://ojs.lib.unideb.hu/actaagrar/article/view/2033.. Acesso em: 2 may. 2024.