%0 Journal Article %A A. Ch. Chigogidze %T The theory of $n$-shapes %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1989 %P 145-174 %V 44 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1989_44_5_a4/ %G en %F RM_1989_44_5_a4