%0 Journal Article %A N. N. Nekhoroshev %T An exponential estimate of the time of stability of nearly-integrable Hamiltonian systems %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1977 %P 1-65 %V 32 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1977_32_6_a0/ %G en %F RM_1977_32_6_a0