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Translated from Matematicheskie Zametki, Vol. 20, No. 4, pp. 619–624, October, 1976.
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Sevast'yanov, E.A. Piecewise-monotonic and rational approximations and uniform convergence of Fourier series. Mathematical Notes of the Academy of Sciences of the USSR 20, 904–907 (1976). https://doi.org/10.1007/BF01098912
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DOI: https://doi.org/10.1007/BF01098912