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@article{MZM_1994_56_4_a11, author = {O. G. Parfenov}, title = {Bernstein widths for some classes of analytic functions}, journal = {Matemati\v{c}eskie zametki}, pages = {123--131}, publisher = {mathdoc}, volume = {56}, number = {4}, year = {1994}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1994_56_4_a11/} }
O. G. Parfenov. Bernstein widths for some classes of analytic functions. Matematičeskie zametki, Tome 56 (1994) no. 4, pp. 123-131. http://geodesic.mathdoc.fr/item/MZM_1994_56_4_a11/