SHAMSIEV, E. A. On calculation of integrals over spherical domains. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 58, n. 6, p. 859–864, 2006. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3502. Acesso em: 6 dec. 2025.