SerdyukA., and StepaniukT. “Approximation of Generalized Poisson Integrals by Interpolating Trigonometric Polynomials”. Ukrains’kyi Matematychnyi Zhurnal 75, no. 7 (July 25, 2023): 946 - 969. Accessed December 21, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/7523.