1. Atom Bomb Test. July 16, 1945. Trinity Site. 1945. With permission of Oxford University Press.
2. Brown A. The neutron and the bomb: a biography of Sir James Chadwick. Oxford, England: Oxford University Press; 1997.
3. Brown P. American martyrs to science through Röentgen rays. Springfield, Ill: Charles C Thomas; 1936.
4. Chadwick J. Possible existence of a neutron. Nature. 1932;129:312.
5. Chicot G. Self portrait. 1907. Rijksmuseum. Stichting Kröller-Müller. With permission, 2010.