Seaborg, Glenn T.; James, R. A.; Ghiorso, A. (1949). "The New Element Curium (Atomic Number 96)"(PDF). NNES PPR (National Nuclear Energy Series, Plutonium Project Record). The Transuranium Elements: Research Papers, Paper No. 22.2. 14 B. OSTI4421946. Archived from the original(PDF) on 12 October 2007.
Seaborg, Glenn T.; James, R. A.; Ghiorso, A. (1949). "The New Element Curium (Atomic Number 96)"(PDF). NNES PPR (National Nuclear Energy Series, Plutonium Project Record). The Transuranium Elements: Research Papers, Paper No. 22.2. 14 B. OSTI4421946. Archived from the original(PDF) on 12 October 2007.