00303nam a2200133Ia 45000030006000000080041000060400015000471000020000622450027000822500010001092600021001195460012001400050017001520STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aPhiliphs, H.B..  aDifferential equations  aThird  bJohn Wileyc1962  aEnglish20220125165942.0