Invertibility conditions in the theory of absolute summability of double series
English version (Springer):
Ukrainian Mathematical Journal 32 (1980), no. 2, pp 107-111
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Citation Example: Slepenchuk K. M. Invertibility conditions in the theory of absolute summability of double series // Ukr. Mat. Zh. - 1980. - 32, № 2. - pp. 189 - 194.
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