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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 22, No. 4, pp. 557–563, July–August, 1970.
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Martynyuk, A.A. Polynomial approximations of the solutions of nonlinear equations. Ukr Math J 22, 480–485 (1970). https://doi.org/10.1007/BF01090775
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DOI: https://doi.org/10.1007/BF01090775