000 00654nam a2200229Ia 4500
003 OSt
005 20220928141428.0
006 a|||||r|||| 00| 0
007 ta
008 220927b |||||||| |||| 00| 0 eng d
024 _a14861
037 _cTextual
040 _aSDCL
_cSDCL
_beng
041 _2eng
_aeng
082 _aB316, N8
100 _aLerman L M
_9500016
245 0 _cLerman L M; Umanskiy Ya L
_aFour - dimensional intergrable hamiltonian systems with simple singular points
_b Topological aspects.
260 _c1998
700 _a Umanskiy Ya L
_9500017
942 _hB316, N8
_cTEXL
_2CC
999 _c817270
_d817270