Obolensky, Dimitri,  1918- <br/><br/>
The Byzantine commonwealth :  Eastern Europe, 500-1453 / 
Dimitri, Obolensky, 
 - London :  Weidenfeld and Nicolson,  1971 
 - xiv, 445 p. :  ill. ;  25 cm. 
 - History of civilisation .
<br/><br/>Bibliography : p. 385-414 
<br/><br/><label>ISBN: </label>0297003437 
<br/><br/><label>LCCN: </label>76-866501 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Byzantine Empire<br/>Byzantine Empire--Civilization