%0 Journal Article
%A A. A. Zil'berberg
%T A~property of closed convex polygons in two-dimensional spaces of constant curvature
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1978
%P 18-24
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_1978_1_a2/
%G ru
%F IVM_1978_1_a2