%0 Journal Article %A P. M. Elizarov %T Orbital topological classification of analytic differential equations in the neighbourhood of a degenerate elementary singularity %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1985 %P 227-228 %V 40 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1985_40_5_a5/ %G en %F RM_1985_40_5_a5