Stoyanov, Totko, and Nikola Rusev. “Ранни гръцки импорти от района на Попово: Early Greek Imports from Popovo Region”. Bulgarian e-Journal of Archaeology | Българско е-Списание за Археология 1, no. 1 (December 15, 2011): 137–143. Accessed July 3, 2022. https://be-ja.org/index.php/journal/article/view/be-ja-1-2011-137-143.