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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 30, No. 4, pp. 540–545, July–August, 1978.
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Karupu, E.V. Moduli of smoothness of conformal transformations. Ukr Math J 30, 418–422 (1978). https://doi.org/10.1007/BF01085869
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DOI: https://doi.org/10.1007/BF01085869