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Translated from Matematicheskie Zametki, Vol. 48, No. 4, pp. 132–139, October, 1990.
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Shadrin, A.Y. Inequalities of Kolmogorov type and estimates of spline interpolation on periodic classes W m2 . Mathematical Notes of the Academy of Sciences of the USSR 48, 1058–1063 (1990). https://doi.org/10.1007/BF01139609
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DOI: https://doi.org/10.1007/BF01139609