Milošević, Marko, Jelena Ćalić, Jelena Kovačević-Majkić, and Milovan Milivojević. “THUFUR MORPHOLOGY WITHIN THE PONOR DEPRESSION (STARA PLANINA, SERBIA)”. Journal of the Geographical Institute “Jovan Cvijić” SASA 72, no. 2 (August 20, 2022): 117–132. Accessed April 26, 2024. https://ojs.gi.sanu.ac.rs/index.php/zbornik/article/view/454.