000 00302nam a2200121 4500
008 160616s 000 0
245 _aVariational theory of geodesics
100 _aPostnikov, M.M
440 _aSaunders mathematics books
500 _aB6:3 K71
942 _cBK
_2BK2878
080 _a514.7 POS
999 _c2878
_d2878