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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 24, No. 1, pp. 57–68, January–February, 1972.
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Polyakov, R.V. Approximation of continuous (analytic interior) functions in domains with a smooth boundary. Ukr Math J 24, 45–53 (1972). https://doi.org/10.1007/BF01089121
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DOI: https://doi.org/10.1007/BF01089121