%0 Journal Article %A Giorgilli, Antonio %T On the problem of stability for near to integrable Hamiltonian systems %J Documenta mathematica %D 1998 %P 143-152 %V ICM Berlin 1998, Vol. III %I mathdoc %U http://geodesic.mathdoc.fr/item/DOCMA_1998__S9__a63/ %G en %F DOCMA_1998__S9__a63