Akhiezer, N. I <br/><br/>
Theory of linear operators in hilbert space 

 - New York  Dover Puplications, INC.  1993 
 - xi,234P,  PB  22cm. 
<br/><br/> Include index 
<br/><br/><label>ISBN: </label>9780486677484 
<br/><br/><label>Dewey Class. No.: </label>515.733  / AKS