Mardvilko, T. S. .; Pekarskii, A. A. . Application of the Real Hardy – Sobolev Space on the Line to Study the Order of Uniform Rational Approximations of Functions. Журнал Белорусского государственного университета. Математика. Информатика 2022, No. 3, 16-36. https://doi.org/10.33581/2520-6508-2022-3-16-36.