00283nam a2200133Ia 45000030006000000080041000060400015000471000020000622450023000822600009001053000006001145460012001200050017001320STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aStevan Gaal, A.  aPoint set topology  c1964  a0  aEnglish20220125165938.0