00293nam a2200133Ia 45000030006000000080041000060400015000471000017000622450013000792500010000922600028001025460012001300050017001420STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aSharma, J.N.  aTopology  aFirst  bKrishna Prakashanc1970  aEnglish20220125165940.0