Ordinary differential equations 
Arnolʹd, V. I. 
 - [Cambridge,  MIT Press,  1973 
 - viii, 280 p.  illus.  23 cm. 
<br/><br/> Translation of Obyknovennye different︠s︡ialʹnye uravnenii︠a︡. 
<br/><br/><label>ISBN: </label>262510189