1.
Gurova M, Rabadziev K, Stoyanov T. Филови четения. Културно-историческото наследство: проучване и опазване: Filov readings. Cultural-historical heritage: research and protection. Be-JA Supplements [Internet]. 2015 Aug. 30 [cited 2022 Aug. 15];4. Available from: https://be-ja.org/index.php/supplements/article/view/21