Narayana Iyer <br/><br/>
Signals and systems 

 - New Delhi  Cengage Learning  2011 
 - xiv, 897p.   
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9788131514689 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fourier transform<br/>Mathematical model -- Linear-invariant systems<br/>Signals and systems<br/>Z-Transform