Weidmann, Joachim <br/><br/>
Spectral theory of ordinary differential operators/ 
Joachim Weidmann. 
 - Berlin;  New York:  Springer-Verlag,  c1987. 
 - vi, 303 p.:  ill.;  25 cm. 
 - Lecture notes in mathematics;  1258. .
 - Lecture notes in mathematics (Springer-Verlag);  1258. .
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. [295]-300. 
<br/><br/><label>ISBN: </label>038717902X (U.S. : pbk.) 
<br/><br/><label>LCCN: </label>87012761 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential operators.<br/>Spectral theory (Mathematics).
<br/><br/><label>Dewey Class. No.: </label>510 s  515.7/242