Reid, William T. (William Thomas), 1907-1977.- <br/><br/>
Sturmian theory for ordinary differential equations 
William T. Reid. 
 - New York  Springer-Verlag  1980 
 - 559p. ;   24cm. 
 - Applied mathematical sciences  v.31 .
<br/><br/>Bibliography: p.509-548 
<br/><br/><label>ISBN: </label>0387905421 
<br/><br/><label>LCCN: </label>80-23012 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations