Encyclopedia of Mathematics and its applications <br/><br/>
Combinatorial methods in discrete mathematics  / 

 - Cambridge:  Cambridge University Press,  1996 
 - xiii, 306p. Index, Bibl. 
 - Encyclopedia of Mathematics and its applications   v. 55 .
<br/><br/> "Translated from the Russian by V. Kolchin" 
<br/><br/><label>Dewey Class. No.: </label>510.3  / En56.55