00312nam a2200133Ia 45000030006000000080041000060400015000471000030000622450037000922500011001292600009001405460012001490050017001610STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aKennedy, G. and Davis, B.  aElectronic communication systems  aFourth  c2003  aEnglish20220125170526.0