KALBEKA, L. (2021) “PRINCELY SEALS OF THE XIth – XIVth CENTURIES FROM THE TERRITORY OF POLOTSK (FROM THE FUNDS OF THE POLOTSK NATIONAL HISTORICAL AND CULTURAL MUSEUM-RESERVE)”, Vestnik of Polotsk State University. Part A. Humanities, (1), pp. 81-85. Available at: https://journals.psu.by/humanities/article/view/1056 (Accessed: 8November2026).