000 00273nam a2200121Ia 4500
020 _a0876925034
100 _aAlan V Oppenheim
245 _aSignals and Systems
260 _c1987
_bPRENTICE HALL
_aNew Delhi
300 _axix+796
700 _aAlan S Willsky
942 _cBK
999 _c14315
_d14315