Serdyuk A, Hrabova U. Order estimates of the uniform approximations by Zygmund sums on the classes of convolutions of periodic functions. Carpathian Math. Publ. [Internet]. 2021 Apr. 21 [cited 2025 May 6];13(1):68-80. Available from: https://ktipe.pnu.edu.ua/index.php/cmp/article/view/4404