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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 41, No. 4, pp. 441–454, April, 1989.
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Belyi, V.I., Golub, A.P. & Shevchuk, I.A. Dzydyk's research on the theory of approximation of functions of a complex variable. Ukr Math J 41, 384–395 (1989). https://doi.org/10.1007/BF01060614
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DOI: https://doi.org/10.1007/BF01060614