00358nam a2200133Ia 45000030006000000080041000060400015000471000017000622450087000792500011001662600018001775460012001950050017002070STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aSaxena, H.C.  aFinite differences and numerical analysis with appendices on differences equations  aNineth  bS.Chandc1984  aEnglish20220125170038.0