Estimates of the diameters of convolution classes in the spaces C and L
English version (Springer): Ukrainian Mathematical Journal 41 (1989), no. 8, pp 919-924.
Citation Example: Kushpel A. K. Estimates of the diameters of convolution classes in the spaces C and L // Ukr. Mat. Zh. - 1989. - 41, № 8. - pp. 1070–1076.
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