00316nam a2200121Ia 45000030006000000080041000060400015000471000031000622450063000932600009001565460012001650050017001770STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aVulikh, B.J.; Volosova, G.  aBrief course in the theory of functions of a real variable  c1976  aEnglish20220125165956.0