000 00246nam a2200097Ia 4500
008 230508s2002 xx 000 0 und d
041 _aeng
100 _aJOHN G. PROAKIS
245 _aDIGITAL COMMUNICATION -4ED
260 _bMCGRAW HILL PUBLI.
_c2002
999 _c326595
_d326595