Oppenheim, Alan V. <br/><br/>
Discrete - time signal processing / 
by Alan V. Oppenheim and Ronald W. Schafer 
 - 2nd ed. 
 - New Jersey :  Prentice Hall Inc,  2000. 
 - Prentice hall signal processing series .
<br/><br/><label>ISBN: </label>8178082446 
<br/><br/><label>Subjects--Index Terms: </label>Discrete - Time Signals Signal Processing 
<br/><br/><label>Dewey Class. No.: </label>681.3822