Conference on "Algebraic Method in Graph Theory", Szeged, Aug. 24-31, 1978 <br/><br/>
Algebraic methods in graph theory  : proceedings / 

 - Amsterdam:  North-Holland,  1981 
 - 
 - Colloquia Mathematica Societatis Janos Bolyai .
<br/><br/><label>Dewey Class. No.: </label>511.5  / C748.AM