TY  - BOOK
AU  - Huelsman L P Ed.
TI  - Active RC filters: theory and application
T2  - Benchmark papers in electrical engineering and computer science; 15
U1  - D65:4,FI, L6 
PY  - 1976///
CY  - Strovdsburg
PB  - Dowden, Eutchinson and Ross
KW  - Electronics
ER  -