TY  - BOOK
AU  - Schaumann, Rolf
AU  - Valkenburg, Mac Van E.
TI  - Design of analog filters
SN  - 0195680871
U1  - 621.3815 
PY  - 2001///
CY  - New York
PB  - Oxford university press, 
KW  - Operational amplifiers
KW  - Delay filters
KW  - Frequency transformation
N1  - Index
ER  -