000			00383nam a2200133Ia 4500
008			211224s9999 xx 000 0 und d
020			_a9780195107340
082			_a621.3815324 VAL
100			_aVan Valkenburg, M. E
245		0	_aAnalog filter design
260			_aOxford: _bOxford University Press, _c1982
300			_axi, 608 p. : ill. ; 25 cm
650			_aElectric filters, Active
999			_c18166 _d18166