Hackbusch, W. <br/><br/>
Lecture Notes in Mathematics 
/ by W. Hackbusch 
 - New York:  Springer-Verlag Berlin Heidelberg;  1982. 
 - vii,652p. 
<br/><br/><label>ISBN: </label>0-387-11955-8 
<br/><br/><label>Dewey Class. No.: </label>510.8  / HAC/L