TY  - BOOK
AU  - Huelsman,Lawrence P.
TI  - Active and passive analog filter design: an introduction 
SN  - 0070308608
PY  - 1993///
CY  - New York
PB  - McGraw-Hill
KW  - Electric filters, Avtive
KW  - Design
KW  - Electric filters, Passive
N1  - Includes bibliographical references (p. 469-470) and index
ER  -