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@article{DAN_1967_175_2_a5, author = {Ch. Davis}, title = {Properties of mappings of certain {Chebyshev} systems}, journal = {Doklady Akademii Nauk}, pages = {280--283}, publisher = {mathdoc}, volume = {175}, number = {2}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1967_175_2_a5/} }
Ch. Davis. Properties of mappings of certain Chebyshev systems. Doklady Akademii Nauk, Tome 175 (1967) no. 2, pp. 280-283. http://geodesic.mathdoc.fr/item/DAN_1967_175_2_a5/