Chichikova, Maria (2016). „The Hellenistic Necropolis of the Getic Capital at Sboryanovo (Northeastern Bulgaria).“. In Henry, Olivier; Kelp, Ute (eds.). Tumulus as Sema: Space, Politics, Culture and Religion in the First Millennium BC. Boston: Walter de Gruyter GmbH & Co KG. pp. 243–259. ISBN978-3-11-026750-1. OCLC936205702.
Chichikova, Maria (2016). „The Hellenistic Necropolis of the Getic Capital at Sboryanovo (Northeastern Bulgaria).“. In Henry, Olivier; Kelp, Ute (eds.). Tumulus as Sema: Space, Politics, Culture and Religion in the First Millennium BC. Boston: Walter de Gruyter GmbH & Co KG. pp. 243–259. ISBN978-3-11-026750-1. OCLC936205702.