VERHULST Ferdinand <br/><br/>
Nonlinear differential equations and dynamical system. 
VERHULST Ferdinand 
 - Verlag  Springer            1990 
 - 277p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>B33, N0/SC