DÁVID, I.; RADÓCZ, L. Allelopathic Effect of Italian Cocklebur on Sugar Beet. Acta Agraria Debreceniensis, [S. l.], n. 16, p. 74-77, 2005. DOI: 10.34101/actaagrar/16/3292. Disponível em: https://ojs.lib.unideb.hu/actaagrar/article/view/3292. Acesso em: 27 nov. 2020.