{"id":"000482220","type":"article","title":"The evolution of Slavic society and the Slavic invasions in Greece. The first major Slavic attack on Thessaloniki, A.D. 597","pages":"378-390","container-title":"Hesperia. Journal of the American School of Classical Studies at Athens, 50.1981","author":[{"family":"Vryonis Jr.","given":"S."}],"issued":{"raw":"1981"}}