TY  - BOOK
AU  - Huelsman,Lawrence P.
AU  - Kerwin,William J.
TI  - Active filters: lumped, distributed, integrated, digital, and parametric
T2  - Inter-university electronics series, v. 11
AV  - TK7872.F5 H8
U1  - 621.381/532 
PY  - 1970///]
CY  - New York
PB  - McGraw-Hill
KW  - Electric filters, Active
KW  - Electronic circuits
N1  - Includes bibliographies
ER  -