%0 Journal Article %A V. I. Arnol'd %T Normal forms of functions in neighbourhoods of degenerate critical points %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1974 %P 10-50 %V 29 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1974_29_2_a2/ %G en %F RM_1974_29_2_a2