00302nam a2200121Ia 45000030006000000080041000060400015000471000040000622450032001022600017001345460012001510050017001630STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aJournal of mathematical Association  aMathematical gazette vol 52  bG.Bellc1968  aEnglish20220125170027.0