Naidu, D.S <br/><br/>
Singular perturbation methodology in control systems 
D.S. Naidu 
 - London  Peter Peregrinus Ltd.  1988 
 - xv  287 
 - IEE control engineering series 34 .
<br/><br/><label>ISBN: </label>0 86341 107 X 
<br/><br/><label>Dewey Class. No.: </label>15.04+4.04  / NAID