Oppenheim, Alan V.    <br/><br/>
Discrete-time signal processing /  
Alan V. Oppenheim, Ronald W. Schafer and John R. Buck    
 - 2nd. ed.    
 - Upper Saddle River,NJ :  Prentice Hall,   1999    
 - xxvi,870p. :  ill.;   25 cm    
<br/><br/>Includes bibliographical reference and index    
<br/><br/><label>ISBN: </label>0130834432    
<br/><br/><label>Subjects--Topical Terms: </label><br/>Discrete-time systems   <br/>Signal processing--Mathematics