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Translated from Matematicheskie Zametki, Vol. 33, No. 3, pp. 393–408, March, 1983.
The author thanks Yu. N. Subbotin for posing the problem and for help in the work.
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Novikov, S.I. Approximation of a class of differentiable functions by ℒ-splines. Mathematical Notes of the Academy of Sciences of the USSR 33, 200–208 (1983). https://doi.org/10.1007/BF01686327
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DOI: https://doi.org/10.1007/BF01686327