Arnold,V.I. <br/><br/>
Geometrical methods in the theory of ordinary differential equations / 
Arnold,V.I. 
 - 2nd ed. 
 - Berlin:  Springer,  1988. 
 - xii,351p;26cm 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>3540780386 
<br/><br/><label>Dewey Class. No.: </label>515.35 ARN