Vladimirova-Aladzhova Д. ., and Grigorova-Gencheva В. . “A History of Numismatic Research in Bulgaria: Between the National Museum (now NAIM – BAS) and Sofia University ‘St. Kliment Ohridski’ and Beyond Them”. Bulgarian Numismatic Journal, vol. 1, no. 1, Mar. 2023, pp. 47-58, https://bulgnj.com/index.php/e-journal/article/view/12.