TY  - BOOK
AU  - Schaumann, Rolf; Xiao Haiqiao; Van Valkenburg, M. E. ;
TI  - Design of analog filters
SN  - 9780195373943
U1  - 621.3815 SCH 
PY  - 2010///
CY  - New York
PB  - Oxford University Press
ER  -