%0 Journal Article %A V. V. Ezhov %A A. V. Loboda %A G. Schmalz %T Canonical form of a~fourth-degree polynomial in a~normal equation of a~real hypersurface in~$\mathbb C^3$ %J Matematičeskie zametki %D 1999 %P 624-626 %V 66 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1999_66_4_a16/ %G ru %F MZM_1999_66_4_a16