Peševski, Igor, Milorad Jovanovski, Megan Guy, and Niamh O’Hare. 2013. “Rockfall Hazard Assessment for Access Road to Dam ‘Sveta Petka’ Using Rockfall Hazard Rating System (RHRS)”. Geologica Macedonica 25 (1), pp.11-20. https://js.ugd.edu.mk/index.php/GEOLMAC/article/view/266.