%0 Journal Article %A A. V. Badin %T Isometric embeddings of two-dimensional Riemannian metrics of negative curvature in $E^3$ %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 1994 %P 47-56 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_1994_2_a6/ %G ru %F VMUMM_1994_2_a6