00283nam a2200121Ia 45000030006000000080041000060400015000471000019000622450042000812600009001235460012001320050017001440STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aEngquist, B.J.  aMathematics unlimited 2001 and beyond  c2001  aEnglish20220125170025.0