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@article{DAN_1976_226_1_a10, author = {A. V. Kuz'minykh}, title = {On a characteristic property of isometric mappings}, journal = {Doklady Akademii Nauk}, pages = {48--50}, publisher = {mathdoc}, volume = {226}, number = {1}, year = {1976}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1976_226_1_a10/} }
A. V. Kuz'minykh. On a characteristic property of isometric mappings. Doklady Akademii Nauk, Tome 226 (1976) no. 1, pp. 48-50. http://geodesic.mathdoc.fr/item/DAN_1976_226_1_a10/