000			00315nam a2200133Ia 4500
005			20251003125928.0
008			251003s9999 xx 000 0 und d
082			_a621.38
100			_aKennedy
245		0	_aElectronic Communication Systems
260			_bMcgraw Hill _aNewyork _c2018
300			_a670
942			_cBK
999			_c40987 _d40987