00270nam a2200121Ia 45000030006000000080041000060400015000471000021000622450027000832600009001105460012001190050017001310STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aKunjipaulo, A.O.  aUniversity mathematics  c1955  aEnglish20220125170030.0