000 003730000a22001450004500
008 140223b1986 xxu||||| |||| 00| 0 eng d
020 _a047182352X
041 _aEng
080 _aCTOD M6
082 _aCTOD M6
100 _aChen Wai-Kai
245 _aPassive and active filters: Theory kand implementations
260 _aNew York
_bJohn Wiley
_c1986
650 _aPhysics
999 _c59609
_d59609