Patseika PG, Rouba YA. Fejer means of rational Fourier – Chebyshev series and approximation of function |x|s. Журнал Белорусского государственного университета. Математика. Информатика [Internet]. 2019 Nov. 27 [cited 2026 Oct. 11];(3):18-34. Available from: https://journals.bsu.by/index.php/mathematics/article/view/1053