TY  - JOUR
AU  - I. U. Bronshtein
AU  - A. Ya. Kopanskii
TI  - Finitely smooth polynomial normal forms of $C^\infty$-diffeomorphisms in the neighborhood of a fixed point
JO  - Funkcionalʹnyj analiz i ego priloženiâ
PY  - 1990
SP  - 79
EP  - 80
VL  - 24
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FAA_1990_24_2_a9/
LA  - ru
ID  - FAA_1990_24_2_a9
ER  -