00281nam a2200121Ia 45000030006000000080041000060400015000471000021000622450027000832600020001105460012001300050017001420STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aConkwright, N.B.  aDifferential equations  bMacmillanc1958  aEnglish20220125165946.0