00299nam a2200133Ia 45000030006000000080041000060400015000471000025000622450030000872500010001172600009001275460012001360050017001480STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aDennis, R.; John, C.  aElectronic communications  aThird  c1990  aEnglish20220125170210.0