R. W. Hamming <br/><br/>
Digital Filters 

 - 3rd 
 - NULL  Dover Publishers  2005 
 - 284 p. 
<br/><br/><label>ISBN: </label>978-0-486-65088-3 
<br/><br/><label>Dewey Class. No.: </label>621.3815324  / H1839d3