000			00351nam a2200169Ia 4500
008			240220s9999 xx 000 0 und d
041			_aENG
082			_a621.395
100			_aOppenheim A. V.
245		0	_aSignals and system
260			_bPearson Education
260			_c2005
300			_a977p.
365			_b295
650			_aETC
942			_cBB
999			_c324 _d324