Problem of falling of Roman empire and B. Ward-Perkins’s book
A. S. Kozlov
Проблема падения Римской империи и книга Б. Уорда-Перкинса - Institutional repository of Federal State Autonomous Educational Institution Higher Professional Education Ural University named after the first President Russia B.N.Yeltsin
Античная древность и средние века|Izvestia. Ural Federal University Journal. Series 2. Humanities and Arts (Ural Federal University)|Electronic scientific archive of UrFU (Ural Federal University)