00335nam a2200145Ia 45000030006000000080041000060400015000471000017000622450046000792500011001252600018001363000006001545460012001600050017001720STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aSaxena, H.C.  aFinite differences and numerical analysis  aEighth  bS.Chandc1982  a0  aEnglish20220125170038.0