Bellman, Richard <br/><br/>
Stability theory of differential equations 
Richard Bellman 
 - New York  Dover Publications  2008 
 - ix+166p.  bib.;index 
<br/><br/><label>ISBN: </label>9780486462738 
<br/><br/><label>Universal Decimal Class. No.: </label>517.9/.929.2  / BEL