Davis, P.J <br/><br/>
Circulant matrices 
P.J. Davis 
 - New York  John Wiley & Sons  1979 
 - xv  250 
 - Pure & applied mathematics .
<br/><br/><label>ISBN: </label>0471057711 
<br/><br/><label>Dewey Class. No.: </label>512.55  / DAV