000			00419nam a2200145Ia 4500
008			241226s9999 xx 000 0 und d
020			_a0-471-82352-x
082			_a621.381 532 4 _bCHE
100			_aChen, W
245		0	_aPassive and active filters:theory and implementations
260			_aNew Delhi : _bJohn Wiley, _c1986.
300			_axv,504
365			_a1352.89
650			_aElectrical Electronics Communication,
999			_c134696 _d134696