Determination the density of cometary nucleus material using gamma ray attenuation. Iraqi Journal of Science, [S. l.], v. 57, n. 2C, p. 1572–1583, 2022. Disponível em: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/7234.. Acesso em: 17 may. 2024.