Jorgens, Konard and Weidmann, Joachim <br/><br/>
Spectral properties of Hamiltonian operators   

 - Berlin  Springer-Verlag  1973 
 - 140p. 
 - Lecture notes in Mathematics   313 .
<br/><br/>  
<br/><br/><label>Dewey Class. No.: </label>515.72  / J82.SP