Meitner, Lise and O.R. Frisch (1939). “Disintegration of uranium by neutrons: a new type of nuclear reaction”. Nature143: 239–240. doi:10.1038/143239a0. Meitner, Lise and O.R. Frisch (1939). “Products of the fission of the uranium nucleus”. Nature143: 471–472. doi:10.1038/143471a0.
Anderson, H.L., E. Fermi, and H.B. Hanstein (1939). “Production of neutrons in uranium bombarded by neutrons”. Physical Review55: 797–798. doi:10.1103/PhysRev.55.797.2. Szilard, Leo and Walter H. Zinn (1939). “Instantaneous emission of fast neutrons in the interaction of slow neutrons with uranium”. Physical Review55: 799–800. doi:10.1103/PhysRev.55.799. von Halben, H., F. Joliot, and Lew Kowarski (1939). “Liberation of neutrons in the nuclear explosion of uranium”. Nature143: 470–472. doi:10.1038/143470a0. von Halben, H., F. Joliot, and Lew Kowarski (1939). “Number of neutrons liberated in the nuclear explosion of uranium”. Nature143: 680. doi:10.1038/143680a0.
Bohr, N. (1939). “Resonance in uranium and thorium disintegrations and the phenomenon of nuclear fission”. Physical Review55: 418–419. doi:10.1103/PhysRev.55.418.2.
Peierls, R. (1939). “Critical conditions in neutron multiplication”. Proceedings of the Cambridge Philosophical Society35: 610–615. doi:10.1017/S030500410002137X.
“The MAUD Report (1941)”. Office of Scientific and Technical Information, U.S. Department of Energy. The Manhattan Project: An Interactive History. 2020年8月7日閲覧。