“The Ideas of Sofronii vrachanski for the construction of the future Bulgarian state and its national security (from the end of xviii and the beginning of xix century)”, PS, vol. 4, no. 1, pp. 33–47, Mar. 2020, Accessed: Nov. 07, 2025. [Online]. Available: https://politics-security.net/index.php/ojsdata/article/view/113