RUNOVSKII, K. V. A method of summation of the Fourier-Jacobi series. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 45, n. 5, p. 676–680, 1993. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5854. Acesso em: 27 apr. 2025.