“Approximation of Classes of $(\psi,\beta)$-Differentiable Functions by Rogozinski Polynomials”. Transactions of Institute of Mathematics, the NAS of Ukraine 14, no. 3 (November 28, 2017): 204–221. Accessed August 27, 2026. https://trim.imath.kiev.ua/index.php/trim/article/view/318.