TY - JOUR AU - È. G. Poznyak TI - Isometric immersions of two-dimensional Riemannian metrics in euclidean space JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1973 SP - 47 EP - 77 VL - 28 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1973_28_4_a2/ LA - en ID - RM_1973_28_4_a2 ER -