KADHIM, Alaa; MAHDI, Heba. Study the Variation of Gamma - Ray Backscattered Count Rate for Halley’s Nucleus. Iraqi Journal of Science, [S. l.], v. 54, n. 4. Appendix, p. 1205–1218, 2024. Disponível em: https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/12447.. Acesso em: 8 dec. 2025.