000 00434nam a2200145Ia 4500
008 170101s1975 xx 000 0 und d
082 _a621.381.532 J50R
100 _aJohnson, David E.
245 0 _aRapid practical designs of active filters
260 _aN.Y.
_bWiley
_c1975
300 _a24; 264
650 _aELECTRIC FILTERS -- DESIGN AND CONSTRUCATION
653 _aELECTRIC FILTERS -- DESIGN AND CONSTRUCATI
942 _2ddc
_cB
999 _c68712
_d68712