TY  - BOOK
AU  - Butterworth and
AU  - 
TI  - Butterworth and Chebysher digital filters: tables for their design
U1  - 621.372.852.1(083.3) 
PY  - 1973///
CY  - Amsterdam
PB  - Elsevier
KW  - Digital filters
KW  - Filters
KW  - Filter design
KW  - filter tables
KW  - electronic filter tables
ER  -