000			00349nam a2200157Ia 4500
008			190201s9999 xx 000 0 und d
020			_a471805238
082			_a621
082			_b38173
100			_a"Thomas,Roland,E."
245		0	_aCircuits And Signals: An
260			_aNew York
260			_bJohn Wiley
260			_c1984
300			_aXV- 758
999			_c30769 _d30769