Pelenski, Jaroslaw..
The contest for the legacy of Kievan Rus' /

. - Boulder; New York : Columbia University Press,  1998 
. - XXIII, 326 p.  23 cm. 
 - ((East European Monographs) )
<br/>К.: Іл., карти. 
<br/><label>  ISBN: </label>0-88033-274-3