The early medieval Balkans : a critical survey from the sixth to the late twelfth century /

od Fine, John Van Antwerp, jr.
Izdano 1995

Byzantium's Balkan frontier : a political study of the northern Balkans, 900-1204 /

od Stephenson, Paul, zgodovinar.
Izdano 2000

The making of orthodox Byzantium : 600-1025 /

od Whittow, Mark.
Izdano 1996