TY  - BOOK
AU  - Daniels, Richard W.
AU  - 
TI  - Approximation methods for electronic filter design with applications to passive, active and digital networks
U1  - 621.372.54 
PY  - 1974///
CY  - New York
PB  - McGraw-Hill
KW  - Electronic filters
KW  - Filter design
KW  - Filters
ER  -