00322nam a2200133Ia 45000030006000000080041000060400015000471000017000622450051000792500010001302600019001405460012001590050017001710STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aMurray, D.A.  aIntroductory course in diffedrential equations  aFirst  bLongmansc1961  aEnglish20220125170121.0