%0 Journal Article
%A E. V. Shikin
%T Isometric imbeddings in~$E^3$ of noncompact domains of nonpositive curvature
%J Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara
%D 1975
%P 249-266
%V 7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/INTG_1975_7_a14/
%G ru
%F INTG_1975_7_a14