GEORGIEV, G.; PEEVSKA, P. Investigation on the Main Traits of the Sterile Analogue of sunflower Line 2607 using normal seeds and seeds without seed coat. Bulgarian Journal of Crop Science, Sofia, BG, v. 50, n. 6, p. 40–43, 2013. Disponível em: https://agriacad.eu/ojs/index.php/bjcs/article/view/3951.. Acesso em: 10 nov. 2026.