Weidmann, Joachim <br/><br/>
Linear operators in hilbert spaces   

 - New York  Springer-Verlag  1980 
 - xiii, 402p. Index, Bibl. 
 - Graduate texts in Mathematics   68 .
<br/><br/> "Tr. from the German edition by Joseph Szucs".   
<br/><br/><label>Dewey Class. No.: </label>515.72  / W418.LO