00275nam a2200121Ia 45000030006000000080041000060400015000471000018000622450022000802600022001025460012001240050017001360STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aSpiegel, M.R.  aComplex variables  bMcgraw hillc1972  aEnglish20220125170125.0