00296nam a2200121Ia 45000030006000000080041000060400015000471000018000622450056000802600009001365460012001450050017001570STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aForsyth, A.R.  aTheory of differential equations part I and part II  c1890  aEnglish20220125165948.0