@article{RM_1973_28_4_a2,
     author = {\`E. G. Poznyak},
     title = {Isometric immersions of two-dimensional {Riemannian} metrics in euclidean space},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {47--77},
     publisher = {mathdoc},
     volume = {28},
     number = {4},
     year = {1973},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1973_28_4_a2/}
}