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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 34, No. 5, pp. 617–621, September–October, 1982.
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Korneichuk, N.P. Approximations by local splines of minimal defect. Ukr Math J 34, 502–505 (1982). https://doi.org/10.1007/BF01093140
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DOI: https://doi.org/10.1007/BF01093140