%0 Journal Article
%A A. V. Pogorelov
%T On the isometric immersion of a two-dimensional Riemannian manifold homeomorphic to a sphere 

%J Doklady Akademii Nauk
%D 1961
%P 818-820
%V 139
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1961_139_4_a11/
%G ru
%F DAN_1961_139_4_a11