%0 Journal Article %A R. I. Bogdanov %T Reduction to orbital normal form of a vector field on the plane %J Funkcionalʹnyj analiz i ego priloženiâ %D 1976 %P 73-74 %V 10 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1976_10_1_a10/ %G ru %F FAA_1976_10_1_a10