Akhiezer, N.I & Glazman, I.M <br/><br/>
Theory of linear operators in hilbert space, Vol.II 
N.I. Akhiezer & I.M. Glazman 
 - Boston  Pitman Advanced Publishing Program  1981 
 - xii  313-552, xiii-xxxii 
 - Monographs & studies in mathematics 10 .
<br/><br/><label>ISBN: </label>0273084958 
<br/><br/><label>Dewey Class. No.: </label>5.03  / AKHI