00286nam a2200121Ia 45000030006000000080041000060400015000471000018000622450046000802600009001265460012001350050017001470STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aBurkill, J.C.  aTheory of ordinary differential equations  c1956  aEnglish20220125165946.0