Perko, Lawrence <br/><br/>
Differential equations and dynamical systems.-3rd  ed 
Lawence Perko 
 - 3rd ed 
 - New Delhi  Springer   2004 
 - xiv, 555p. 
<br/><br/><label>Subjects--Index Terms: </label>Differential equations Dynamical systems 
<br/><br/><label>Universal Decimal Class. No.: </label>517.9  / PER'04