Georgieva M. ON THE CULTURAL AND HISTORICAL HERITAGE OF SHUMEN FROM THE XIX CENTURY AND ON THE ECONOMIC AND TECHNOLOGICAL INNOVATIONS IN THE CITY: ON THE CULTURAL AND HISTORICAL HERITAGE OF SHUMEN FROM THE XIX CENTURY AND ON THE ECONOMIC AND TECHNOLOGICAL INNOVATIONS IN THE CITY. JSAR [Internet]. 2023 Nov. 29 [cited 2024 May 19];25(1):5-14. Available from: https://jsar.ftn.shu.bg/index.php/jsar/article/view/376