000			00383nam a2200181Ia 4500
008			240220s9999 xx 000 0 und d
041			_aENG
082			_a621381
100			_aOppenheim A. V.
245		0	_aSignals and systems
260			_aNULL
260			_bPrentice Hall Of India.
260			_c1997
300			_a957p.
365			_b225
650			_aETC
942			_cDBK
999			_c25687 _d25687