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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 19, No. 4, pp. 29–47, July–August, 1967.
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Davydov, N.A. Inclusion and equivalence of Kozhim summation methods. Ukr Math J 19, 403–419 (1967). https://doi.org/10.1007/BF01090400
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DOI: https://doi.org/10.1007/BF01090400