000			00371nam a2200169Ia 4500
008			190201s9999 xx 000 0 und d
020			_a9.78818E+12
082			_aAL-
082			_b7 & AL-
100			_a"Oppenheim, Alan V"
245		0	_aSignals and Systems
250			_aSecond
260			_aNew Delhi
260			_bP.H.I
260			_c1997
300			_a"XXX, 977"
999			_c19520 _d19520