LASURIYA, R. A. Strong summability and properties of Fourier?Laplace series on a sphere. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 64, n. 5, p. 649–661, 2012. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2605. Acesso em: 5 dec. 2025.