000 00570nam a2200241Ia 4500
003 OSt
005 20220912153051.0
006 a|||||r|||| 00| 0
007 ta
008 220909b |||||||| |||| 00| 0 eng d
024 _a22497
037 _cTextual
040 _aCSL
_beng
_cCSL
041 _aeng
082 _aB331, K22
100 _aPentryagin I S
245 0 _cPentryagin I S
_aOrdinary differential equations
260 _c1962
300 _ap.
_ccm.
650 _aMathematics
942 _hB331, K22
_cTEXL
_2CC
999 _c97625
_d97625