Pontrًiٌagin, L. S. ( Lev Semenovich )  ,1908- <br/><br/>
Ordinary differential equations 
Translated from the Russian by Leonas Kacinskas and Walter B. Counts. 
 -  Addison-Wesley Pub. Co. Reading, Mass.  1962  [1962] 
 - 298 p.illus.24 cm. 
 - Adiwes international series in mathematics .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations.--QA
<br/><br/><label>LC Class. No.: </label>QA372.P733