%0 Journal Article %A V. D. Sedykh %T Functional moduli of singularities of convex hulls of manifolds of codimensions~1 and~2 %J Sbornik. Mathematics %D 1984 %P 223-236 %V 47 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1984_47_1_a12/ %G en %F SM_1984_47_1_a12