VakarchukS. B., and ZhirS. I. “On the Best Polynomial Approximation of Entire Transcendental Functions of Generalized Order”. Ukrains’kyi Matematychnyi Zhurnal 60, no. 8 (August 25, 2008): 1011–1026. Accessed November 23, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/3219.