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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 36, No. 4, pp. 507–512, July–August, 1984.
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Kushpel, A.K. A method of reconstruction of differentiate periodic functions by trigonometric polynomials. Ukr Math J 36, 416–420 (1984). https://doi.org/10.1007/BF01066566
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DOI: https://doi.org/10.1007/BF01066566