Kharkevych Y, Stepaniuk T. Approximate properties of Abel-Poisson integrals on classes of differentiable functions defined by moduli of continuity. Carpathian Math. Publ. [Internet]. 2023 Jun. 30 [cited 2024 Nov. 21];15(1):286-94. Available from: https://vps.pnu.edu.ua/index.php/cmp/article/view/6250