Špehar, Perica, Nevena Debljović Ristić, i Olga Špehar. 2018. „Stari (Old) Ras and Sopoćani: Challenges and Opportunities in Managing UNESCO Cultural Heritage”. Ana­lecta Archa­eolo­gica Res­so­viensia 13 (grudzień):135-54. https://doi.org/10.15584/anarres.2018.13.7.