Studying the stability of equilibrium solutions in the planar circular restricted four-body problem. Neliniini Kolyvannya, [S. l.], v. 10, n. 1, p. 66–82, 2007. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/421. Acesso em: 21 jan. 2026.