00283nam a2200121Ia 45000030006000000080041000060400015000471000021000622450027000832600022001105460012001320050017001440STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aYates Robert, C.  aDifferential equations  bMcgraw hillc1982  aEnglish20220125165943.0