Knowles, Ian W. . <br/><br/>
Spectral Theory of Differential Operators /  

 - New York :   North-Holland Publishing Company. 
 - xv, 384p ;  
<br/><br/><label>ISBN: </label>0 444 8627 37 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics <Differential Operators>
<br/><br/><label>Dewey Class. No.: </label>B3310t4p73,N81  / M1