%0 Journal Article %A Yu. S. Ilyashenko %A S. Yu. Yakovenko %T Finitely-smooth normal forms of local families of diffeomorphisms and vector fields %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1991 %P 1-43 %V 46 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1991_46_1_a0/ %G en %F RM_1991_46_1_a0