YANCHENKO, S. Ya. Approximation of the classes $S^r_{p,θ}B(\mathbb{R}^d)$ of functions of many variables by entire functions of a special form. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 62, n. 8, p. 1124–1138, 2010. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2942. Acesso em: 17 apr. 2025.