Voitovych VA. Estimates for the Approximations of the Classes of Analytic Functions by Interpolation Analogs of the De-La-Vallée–Poussin Sums. Ukr. Mat. Zhurn. [Internet]. 2014Jan.25 [cited 2024Nov.24];66(1):49–62. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/2110