TY  - BOOK
AU  - Schaumann Rolf
AU  -  VanValken Burg Mac E
TI  - Design of analog fitters
T2  - Oxford series in electrical and computer engineering
U1  - D651,1478, P1 
PY  - 2001///
CY  - New York  
PB  -  Oxford University Press    
KW  - Analog Circuits-Electronics
ER  -