Dumortier, Freddy. <br/><br/>
Qualitative Theory of Planar Differential Systems  [electronic resource] / 
by Freddy Dumortier, Jaume Llibre, Joan C.Artes. 
 - Berlin, Heidelberg :  Springer,  2006. 
 - xvi, 298 pages :  illustration, digital ;  24 cm. 
<br/><br/><label>ISBN: </label>9783540329022 (electronic bk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations--Qualitative theory.<br/>Differential equations--Numerical solutions.
<br/><br/><label>LC Class. No.: </label>QA372  / .D84 2006 
<br/><br/><label>Dewey Class. No.: </label>515.35