Reyn, John. <br/><br/>
Phase Portraits of Planar Quadratic Systems  [electronic resource] / 
by John Reyn. 
 - Norwell :  Springer Science+Business Media, LLC,  2007. 
 - xvi, 334 p. :  ill., digital ;  24 cm. 
 - Mathematics and Its Applications ;  583 .
<br/><br/><label>ISBN: </label>9780387352152 (electronic bk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations.<br/>Equations, Quadratic.
<br/><br/><label>LC Class. No.: </label>QA372  / .R533 2007 
<br/><br/><label>Dewey Class. No.: </label>515.35