Arnol'd, V. I. <br/><br/>
Encyclopaedia of mathematical sciences Vol-6  Dynamical Systems VI 
/ by V. I. Arnol'd 
 - New York  Springer  1993 
 - 245p. 
<br/><br/><label>ISBN: </label>3540505830 
<br/><br/><label>Dewey Class. No.: </label>531.1  / ARN/D