%0 Journal Article %A A. M. Samoilenko %T On the reduction to canonical form of a dynamical system in the neighborhood of a smooth invariant torus %J Izvestiya. Mathematics %D 1972 %P 211-234 %V 6 %N 1 %U http://geodesic.mathdoc.fr/item/IM2_1972_6_1_a5/ %G en %F IM2_1972_6_1_a5