SERDYUK, A. S.; CHAICHENKO, S. O. Approximation of classes of analytic functions by a linear method of special form. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 63, n. 1, p. 102–109, 2011. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2701. Acesso em: 27 apr. 2025.