JUNG, S.-M. Approximation of analytic functions by Bessel functions of fractional order. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 63, n. 12, p. 1699–1709, 2011. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2835. Acesso em: 14 apr. 2025.