Stoyanov, Svetlozar. “ENGINEERING DOCUMENTATION OF ARCHAELOGICAL EXCAVATIONS OF THE SITE “EARLY (WOODEN) FORTIFICATION” IN THE INNER CITY OF PLISKA AS PART OF THE CULTURAL AND HISTORICAL HERITAGE OF THE REPUBLIC OF BULGARIA: ENGINEERING DOCUMENTATION OF ARCHAELOGICAL EXCAVATIONS OF THE SITE ‘EARLY (WOODEN) FORTIFICATION’ IN THE INNER CITY OF PLISKA AS PART OF THE CULTURAL AND HISTORICAL HERITAGE OF THE REPUBLIC OF BULGARIA”. JOURNAL SCIENTIFIC AND APPLIED RESEARCH 24, no. 1 (November 23, 2023): 52–64. Accessed December 3, 2024. https://jsar.ftn.shu.bg/index.php/jsar/article/view/368.