TY  - BOOK
AU  - Cunningham,Edward P.
TI  - Digital filtering: an introduction 
SN  - 0471124753
U1  - 621.3822 20
PY  - 1995///
CY  - Boston, New York
PB  - Houghton Mifflin Co., John Wiley & Sons
KW  - Digital filters (Mathematics)
N1  - Includes bibliographical references and index
ER  -