%0 Journal Article
%A E. V. Shikin
%T The regular realization in the large in $E^3$ of two-dimensional metrics of class $C^2$ with negative curvature of class $C^1$
%J Doklady Akademii Nauk
%D 1969
%P 1014-1016
%V 188
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1969_188_5_a13/
%G ru
%F DAN_1969_188_5_a13