Geometrical methods in the theory of ordinary differential equations  
Arnolʹd, V. I. 
 - 2nd ed. 
 - New York :  Springer-Verlag,  1988 
 - xii, 351 p. :  ill. ;  25 cm. 
 - Grundlehren der mathematischen Wissenschaften ;  250 .
<br/><br/> Translation of: Dopolnitelʹnye glavy teorii obyknovennykh different︠s︡ialʹnykh uravneniĭ. 
<br/><br/><label>ISBN: </label>3540780386