00407nam a2200133Ia 45000030006000000080041000060400015000471000058000622450091001202500011002112600022002225460012002440050017002560STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aCarlson, A.B.; Crilly, P.B.; and Routledge, J.C.; Eds  aCommunication systems an introduction to signals and noise in electrical communication  aFourth  bMcgraw hillc2002  aEnglish20220125170526.0