TY - JOUR AU - V. I. Arnol'd TI - Normal forms of functions in neighbourhoods of degenerate critical points JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1974 SP - 10 EP - 50 VL - 29 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1974_29_2_a2/ LA - en ID - RM_1974_29_2_a2 ER -