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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 39, No. 2, pp. 139–144, March–April, 1987.
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Babenko, V.F. Sharp inequalities for the norms of conjugate functions and their applications. Ukr Math J 39, 115–119 (1987). https://doi.org/10.1007/BF01057488
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DOI: https://doi.org/10.1007/BF01057488