SKRYPNIK, W. Periodic Coulomb dynamics of three equal negative charges in the field of six equal positive charges fixed in octahedron vertices. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 75, n. 2, p. 230–246, 2023. DOI: 10.37863/umzh.v75i2.7263. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/7263. Acesso em: 5 dec. 2025.