Davidoff Giuliana <br/><br/>
Elementarynumber theory group theory and Ramanujan graphs 

 - Cambridge  CUP  2003 
 - viii,144p.;22.5cm 
<br/><br/><label>ISBN: </label>0-521-53143-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Graph theory