000 00384nam a2200121Ic 4500
008 240520s9999 xx 000 0 und d
020 _a71210733
100 1 _aCarlson, A. Bruce
245 1 0 _aComunication systems: an intro. to signals and noise in electrical comm... /
_cA. Bruce Carlson
264 1 _aBoston
_bMcGraw -Hill
_c2002
300 _axiii.; 850 p.; ill .;24 cm
942 _cBK
999 _c12261
_d12261