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@article{MZM_1968_3_1_a7, author = {L. P. Vlasov}, title = {Chebyshev sets and some generalizations of them}, journal = {Matemati\v{c}eskie zametki}, pages = {59--69}, publisher = {mathdoc}, volume = {3}, number = {1}, year = {1968}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1968_3_1_a7/} }
L. P. Vlasov. Chebyshev sets and some generalizations of them. Matematičeskie zametki, Tome 3 (1968) no. 1, pp. 59-69. http://geodesic.mathdoc.fr/item/MZM_1968_3_1_a7/