00351nam a2200145Ia 45000030006000000080041000060400015000471000017000622450046000792500006001252600039001313000006001705460012001760050017001880STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aSaxena, H.C.  aFinite differences and numerical analysis  a1  bS.Chand & sons; Delhic2008aDelhi  a0  aEnglish20220125170037.0