000 00304nam a2200133Ia 4500
100 _aElsgolts
942 _cBK
654 _aEquations
245 _aDifferential Equations & the Calculus of Variations
260 _bMir Publishers
_aMoscow
_c1973
082 _a515
300 _a440
546 _aENGLISH
999 _c25368
_d25368