Eigenvalues and s-numbers    Albrecht Pietsch 

 - New York   Cambridge University Press,   1987 
 - 360 p.   ; 24 cm. 
<br/><br/>  Includes index. Bibliography 
<br/><br/><label>ISBN: </label>0521325323 
<br/><br/><label>LC Class. No.: </label>QA329  / .P5