VakarchukS. B. (1994) “On the best polynomial approximation of entire transcendental functions in banach spaces. I”, Ukrains’kyi Matematychnyi Zhurnal, 46(9), pp. 1123–1133. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/5629 (Accessed: 24November2024).