%0 Journal Article %A I. M. Nikonov %T Description of degenerate two-dimensional singularities with single critical point %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 2019 %P 5-15 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_2019_3_a1/ %G ru %F VMUMM_2019_3_a1