%0 Journal Article %A E. V. Shikin %T Equations of isometric imbeddings in three-dimensional Euclidean space of two-dimensional manifolds of negative curvature %J Matematičeskie zametki %D 1982 %P 601-612 %V 31 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1982_31_4_a10/ %G ru %F MZM_1982_31_4_a10