00354nam a2200133Ia 45000030006000000080041000060400015000471000017000622450084000792500010001632600018001735460012001910050017002030STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aSaxena, H.C.  aFinite deferences and numerical analysis with apendices on difference equations  aTenth  bS.Chandc1990  aEnglish20220125170038.0