BERTA, A.; BÉRI, B. Examinations connected with productive life in Hungarian Holstein Friesian populations. Acta Agraria Debreceniensis, [S. l.], n. 27, p. 32-39, 2007. DOI: 10.34101/actaagrar/27/3098. Disponível em: https://ojs.lib.unideb.hu/actaagrar/article/view/3098. Acesso em: 25 nov. 2020.