Zeimer, Rodger E. <br/><br/>
Signals and systems :  continuous and discrete / 
Rodger E. Zeimer, William H. Tranter, D. Ronald Fannin. 
 - 4th  ed. 
 - New Delhi :  Pearson Education,  1998. 
 - xvii, 622  p. 
<br/><br/><label>ISBN: </label>8131703267 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>System analysis.<br/>Discrete-time systems.<br/>Digital filters (Mathematics)