Baumgartel H <br/><br/>
Analytic perturbation theory for matrices and operators 

 - Basel  Birkhauser           1984 
 - 427p.  cm. 
 - Operator theory: advances and applications; 15 .
<br/><br/><label>Standard No.: </label>878 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B245, M4