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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 Nov. 21];25(1):5-14. Available from: https://jsar.ftn.shu.bg/ojs-3.3.0-7/index.php/jsar/article/view/376