1.
Serdyuk AS. Approximation of Poisson integrals by de la Valleé-Poussin sums in uniform and integral metrics. Ukr. Mat. Zhurn. [Internet]. 2010Dec.25 [cited 2024Dec.4];62(12):1672–1686. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/2991