%0 Journal Article %A I. V. Itenberg %T Rigid isotopy classification of the curves of degree 6 with a non-degenerate singular point %J Zapiski Nauchnykh Seminarov POMI %D 1991 %P 72-89 %V 193 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1991_193_a4/ %G ru %F ZNSL_1991_193_a4