Reid, William T.  1907-1977. <br/><br/>
Sturmian theory for ordinary differential equations / 
W.T. Reid. 
 - New York :  Springer-Verlag,  1980. 
 - xv, 559 p. ;  24 cm. 
 - Applied mathematical sciences  v. 31 .
<br/><br/> Includes indexes 
<br/><br/>Bibliography: p. 509-548 
<br/><br/><label>ISBN: </label>0387905421 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations