Meyendorff, John.
Byzantium and the rise of Russia: a study of Byzantino-Russian relations in the fourteenth century /
John Meyendorff 
. - Crestwood : St. Vladimir's Seminary Press,  1989 
. - xix, 326 p.  map.  23 cm. 
<br/>К.: Бібліогр. : c. ix-xvi, Index 
<br/><label>  ISBN: </label>0-88141-079-9