00298nam a2200121Ia 45000030006000000080041000060400015000471000016000622450037000782600032001155460012001470050017001590STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aJoshi, K.D.  aIntroduction to general topology  bNew age internationalc2000  aEnglish20220125165938.0