SINGHVI, A. K.; AITKEN, M. J. Americium-241 for Alpha-irradiations. Ancient TL, [S. l.], v. 2, n. 2, p. 2–9, 1978. DOI: 10.26034/la.atl.1978.007. Disponível em: https://www.ancienttl.org/article/view/6269. Acesso em: 2 mar. 2026.