%0 Journal Article
%A I. M. Grudskii
%T The Christoffel--Schwarz formula for polyhedral surfaces
%J Doklady Akademii Nauk
%D 1989
%P 15-17
%V 307
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1989_307_1_a1/
%G ru
%F DAN_1989_307_1_a1