Tipologija na vărchove na kopija ot Mizija i Trakija (1-6 v - Christova, Viktorija (Orăžie i snarjaženie prez kăsnata antičnost i srednovekovieto 4-15 v : Meždunarodna konferencija, Varna 14-16 septemvri 2000. Weapons and military equipment during the late antiquity and the middle ages 4th-15th centuries. International Conference Varna, 14-16 September 2000., 2002)