000 00559nam a2200217Ia 4500
003 OSt
005 20220928141607.0
006 a|||||r|||| 00| 0
007 ta
008 220927b |||||||| |||| 00| 0 eng d
024 _a16236
037 _cTextual
040 _aSDCL
_cSDCL
_beng
041 _2eng
_aeng
082 _aB33, M9
100 _aStephani Hans
_9501107
245 0 _aDifferential equations
_b Their solution using symmetrics.
260 _c1989
942 _hB33, M9
_cTEXL
_2CC
999 _c818590
_d818590