Alexius I to lexius V, (1081-1204)

Hendy, Michael F.. Alexius I to lexius V, (1081-1204) / Michael F. Hendy . - Washington : Dumbarton Oaks Center for Byzantine Studies, 1999 . - xi, 443 p. tab. 30 cm. - Dumbarton Oaks catalogues .
0-88402-233-1