000 00267nam a22001217a 4500
999 _c5995
_d5995
003 OSt
005 20210316121220.0
008 210316b ||||| |||| 00| 0 eng d
100 _aOPPENHEIM, ALAN
245 _aSIGNALS AND SYSTEMS
260 _bPEARSON
942 _2ddc
_cGE