%0 Journal Article
%A I. U. Bronshtein
%A A. Ya. Kopanskii
%T Finitely smooth polynomial normal forms of $C^\infty$-diffeomorphisms in the neighborhood of a fixed point
%J Funkcionalʹnyj analiz i ego priloženiâ
%D 1990
%P 79-80
%V 24
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FAA_1990_24_2_a9/
%G ru
%F FAA_1990_24_2_a9