TY  - GEN
AU  - Chen,Wai-Kai
TI  - Passive and active filters: theory and implementations 
SN  - 047182352X
AV  - TK 7872 CHE 1986 
PY  - 1986///
CY  - New York
PB  - John Wiley and Sons
KW  - Electric filters, Active
KW  - Electric filters, Passive
KW  - Analog electronic systems
N1  - Includes bibliographies and index; Includes bibliographies and index
ER  -