Oppenheim, Alan V <br/><br/>
Signals and systems 

 - 2 
 - New Delhi  Prentice-Hall  1997 
 - xxx, 957p.   
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>8120312465 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication systems<br/>Discrete time system<br/>Fourier analysis - Continuous time signals<br/>Mathematical representation<br/>Signals and systems