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@article{DAN_1961_138_3_a1, author = {I. Ya. Bakelman}, title = {Generalized {Chebyshev} nets and manifolds of bounded curvature}, journal = {Doklady Akademii Nauk}, pages = {506--507}, publisher = {mathdoc}, volume = {138}, number = {3}, year = {1961}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1961_138_3_a1/} }
I. Ya. Bakelman. Generalized Chebyshev nets and manifolds of bounded curvature. Doklady Akademii Nauk, Tome 138 (1961) no. 3, pp. 506-507. http://geodesic.mathdoc.fr/item/DAN_1961_138_3_a1/