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@article{IVM_1991_5_a1, author = {O. V. Davydov}, title = {Best uniform approximation of periodic functions by splines}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {9--16}, publisher = {mathdoc}, number = {5}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1991_5_a1/} }
O. V. Davydov. Best uniform approximation of periodic functions by splines. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 5 (1991), pp. 9-16. http://geodesic.mathdoc.fr/item/IVM_1991_5_a1/