%0 Journal Article %A A. I. Degtyarev %T Classification of quartics possessing a non-simple singular point.~II %J Zapiski Nauchnykh Seminarov POMI %D 1991 %P 10-38 %V 193 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1991_193_a1/ %G ru %F ZNSL_1991_193_a1