KUZMANOVA, Lyubena; KOSTADINOVA, Svetla; GANUSHEVA, Nevena. Content and expense of nitrogen and phosphorus in barley genotypes. Bulgarian Journal of Crop Science, Sofia, BG, v. 52, n. 3, p. 43–46, 2015. Disponível em: https://agriacad.eu/ojs/index.php/bjcs/article/view/3383.. Acesso em: 11 oct. 2026.