000 00321nam a2200109Ia 4500
008 230222s9999 xx 000 0 und d
100 _aA Bruce Carlson
245 0 _aCommunication Systems ;An Introduction to Signals and Noise in Electrical Communication 3 Ed
250 _a3
260 _bMc Graw Hill
_c1988
942 _cBK
999 _c31084
_d31084