MALINOV, ILIYA, and DILYANA ILIEVA. “GULLY AND RILL EROSION IN THE NATIONAL PARK „CENTRAL BALKAN” ”. Bulgarian Journal of Agricultural Science 23, no. 2 (April 28, 2017): 238–241. Accessed November 4, 2026. https://agriacad.eu/ojs/index.php/bjas/article/view/5123.