Nesterenko ON, PetrovaIL, Chaikovs’kyiAV. On a property of moduli of smoothness with Jacobi weights. Ukr. Mat. Zhurn. [Internet]. 2022May23 [cited 2024Dec.4];74(4):534 -51. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/7034