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024 _a17135
037 _cTextual
040 _aSDCL
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041 _2eng
_aeng
082 _aD651,1478:4, M6
100 _aWilliams Charles S
_9500298
245 0 _aDesigning digital filters.
260 _c1986
942 _hD651,1478:4, M6
_cTEXL
_2CC
999 _c819458
_d819458