TY - JOUR AU - A. V. Badin TI - Isometric embeddings of two-dimensional Riemannian metrics of negative curvature in $E^3$ JO - Vestnik Moskovskogo universiteta. Matematika, mehanika PY - 1994 SP - 47 EP - 56 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMUMM_1994_2_a6/ LA - ru ID - VMUMM_1994_2_a6 ER -