TY  - BOOK
AU  - Sedra, Adel S.
AU  - Brackett, Peter O.
TI  - Filter theory and design: active and passive 
U1  - 621.381532 
PY  - 1979///
CY  - London
PB  - Pitman
KW  - Electric filters
KW  - Electronic circuit design
KW  - Approximation theory
KW  - Electric network synthesis
N1  - Includes bibliographical references
ER  -