Ramm, Alexander G., <br/><br/>
Spectral and Scattering Theory : 

 -  Springer Science & Business Media,  1998. 
 - 220 pages 
<br/><br/><label>ISBN: </label>9780306458293 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics.
<br/><br/><label>Dewey Class. No.: </label>515.7222  / RAM