000 00352nam a2200121Ia 4500
008 211209s1970 xx 000 0 und d
041 _aeng
082 _a621.381 5324 N70 YAL
100 _aYALE J L
245 _aFILTER SYSTEMS AND DESIGN: ELECTRICAL MICROWAVE AND DIGITAL.
260 _aLONDON
_bADDISON WESLEY PUBLISHING COMPANY
_c1970
300 _a220
999 _c21502
_d21502