Risuvanata ornamentacija kato sistema za kommunikacija meždu pokolenijata (po materiali ot ranno- i srednoneolitnija plast na tel Kazanlăk). (The painted ornamentation as a communication system between the generations (based on evidence from the Early and Middle Neolithic layers of Tell Kazanlak) - Nikolov, Vasil (Arheologija (Sofija), 44,2 (2003), 2003)