Freitas <br/><br/>
Digital filter design solutions 
Jolyon M. De Freitas 
 - Boston, USA  Artech House Inc.  2005 
 - xix, 463p.  ill.  24 cm  1 CD-ROM (4 3/4 in.) 
<br/><br/> includes Bibliographical References and Index 
<br/><br/><label>ISBN: </label>1580537596 
<br/><br/><label>LCCN: </label>2005041180 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric filters--Digital--Design and construction<br/>Signal processing--Digital techniques