Pontryagin, L. S. <br/><br/>
Ordinary differential equations 

 - London  ; Addison- Wesley Publishing  , 1962 
 - 298p. 
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential Equations<br/>Mathematical Analysis<br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>515.35  / PON