TY  - BOOK
AU  - Valkenburg, Van M.E.
TI  - Analog filter design 
SN  - 0030592461 (pbk)
U1  - 621.3815324 
PY  - 1982///
CY  - New York 
PB  - Holt Rinehart and Winston 
KW  - Electric fitters
KW  - Operational amplifiers
KW  - Frequently transformations
KW  - Magnitude responses
KW  - Operational amplifier
KW  - Transfer functions
KW  - Lowpass filters
KW  - Delay filters
KW  - FEAS
ER  -