Schechter, Martin. <br/><br/>
Spectra of partial differential operators / 
by Martin Schechter. 
 - Amsterdam :  North-Holland ;  1971. 
 - xiii, 268 p.  ;   23 cm. 
 - North-Holland series in applied mathematics and mechanics ;  vol.14 .
<br/><br/> Bibliographyp.260-264. _ Includes index. 
<br/><br/><label>ISBN: </label>0444101098 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Partial differential operators.<br/>Spectral theory (Mathematics).