HUSSIEN, Abdrahman; JARAD, Magid M.; MAHDI, Farid M. Calculation the affects of the sun, moon and satellite position on the perturbation forces of the low retrograde orbits. Iraqi Journal of Science, [S. l.], v. 60, n. 4, p. 891–903, 2019. Disponível em: https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/734.. Acesso em: 8 dec. 2025.