Coppel, W. A. <br/><br/>
Disconjugacy / 
W. A. Coppel 
 - Berlin :  Springer-Verlag,  1971 
 - 147 p. ;  26 cm. 
 - Lecture notes in mathematics (Berlin) ;  220 .
<br/><br/><label>ISBN: </label>0387055843 :  PND 16.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations
<br/><br/><label>Dewey Class. No.: </label>510.82