MALINOV, ILIYA; ILIEVA , DILYANA. GULLY AND RILL EROSION IN THE NATIONAL PARK „CENTRAL BALKAN” . Bulgarian Journal of Agricultural Science, Sofia, BG, v. 23, n. 2, p. 238–241, 2017. Disponível em: https://agriacad.eu/ojs/index.php/bjas/article/view/5123.. Acesso em: 4 nov. 2026.