○C アナログフィルタの設計 M.E. VAN VALKENBURG 秋葉出版,Analog Filter Design (The ^AOxford Series in Electrical and,Design of Analog Filters: Schaumann, Rolf, Van Valkenburg,Analog Filter Design (The ^AOxford Series in Electrical and,Design of Analog Filters: Schaumann, Rolf, Van Valkenburg