00300nam a2200133Ia 45000030006000000080041000060400015000471000025000622450030000872500011001172600009001285460012001370050017001490STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aDennis, R.; John, C.  aElectronic communications  aFourth  c1997  aEnglish20220125170210.0