TY  - BOOK
AU  - Johnson, David E.
AU  - Title
TI  - Introduction to Filter Theory
SN  - 0-13-483776-2
AV  - 621.381    J63i 
CY  - Estados Unidos de América : 
PB  - Prentice Hall
KW  - Electric Filters
N1  - Includes index y bibliography; Network Functions. -- Approximation All pole filters. -- Frequency Transformations. -- Elements of passive synthesis. -- Approximation Rational Transfer Functions. -- Phase Shifting and time-delay Filters. -- Time  Domain Considerations. -- Passive Synthesis-Further Considerations. -- Elements of active Synthesis. -- Active Filters. -- Sensitivity
ER  -