HASSAN, M. R. .; SINGH, C. K. .; RAHMAN, M. A. .; HASSAN, M. A. . Photo – gravitational Effect on the Sitnikov Five – body Problem forming Square Configuration. International Journal of Technical Innovation in Modern Engineering & Science, [S. l.], v. 5, n. 4, p. 1224–1231, 2019. Disponível em: https://ijtimes.com/index.php/ijtimes/article/view/2937. Acesso em: 25 may. 2026.