000			00308nam a2200133Ia 4500
005			20251013120714.0
008			251006s9999 xx 000 0 und d
041			_aeng
082			_a621.38 _bP
100			_aProakis J.G.
245			_aDigital Communications
260			_bMcGraw Hill _c1989
300			_a905 p.
999			_c95926 _d95926