%0 Journal Article %A O. A. Platonova %T Singularities of projections of smooth surfaces %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1984 %P 177-178 %V 39 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1984_39_1_a20/ %G en %F RM_1984_39_1_a20