000 00273nam a2200121Ia 4500
008 200701s2001 xx 000 0 eng d
100 _aOPPENHEIN ALAN
245 0 _aSIGNALS AND SYSTEMS
250 _a2nd
260 _bPHI NEW DELHI
_c2001
300 _a957
942 _2ddc
_cGE
999 _c1708
_d1708