[1]
A. . Serdyuk and T. Stepaniuk, “Uniform approximations by Fourier sums on the sets of convolutions of periodic functions of high smoothness”,
Ukr. Mat. Zhurn.
, vol. 75, no. 4, pp. 542–567, May 2023, doi:
10.37863/umzh.v75i4.7411
.