1. Akimoto, Y.: Preparation of AmO and PuO. Chemistry Division Progress Report, UCRL-9093 (Dez. 1959), S. 74.
2. Akimoto, Y., B. B. Cunningham, D. B. McWhan and J. C. Wallmann: The Preparation of Americium Metal, Curium Metal, Americium Nitride and Americium Monoxide. Chemistry Division Semiannual Progress Report, Dec. 1958 through May 1959, UCRL-8867 (Juli 1959), S. 59 ff.
3. Armstrong, D. E., L. B. Asprey, J. S. Coleman, T. K. Keenan, L. E. Lamar and R. A. Penneman: Purification of Gram Amounts of Americium. Report LA-1975 (21. Mai 1956).
4. —: Ion Exchange Separation of Gram Quantities of Americium from a Kilogram of Lanthanum. A.I.Ch.E. Journal 3, 286 (1957).
5. Asprey, L. B.: New Compounds of Quadrivalent Americium. J. Amer. chem. Soc. 76, 2019 (1954).