Vidyasagar, M. (Muthukumalli). <br/><br/>
Nonlinear systems analysis/ 
M. Vidyasagar. 
 - 2nd ed. 
 - Englewood Cliffs, N.J.:  Prentice-Hall/  1993. 
 - 497 p. :  ill. ;  25 cm. 
<br/><br/>p. 486-492. 
<br/><br/><label>ISBN: </label>0136234631 
<br/><br/><label>Subjects--Topical Terms: </label><br/>System analysis.<br/>Difference equations, Nonlinear.