|O. Hahn and F. Strassman, "Concerning the Existence of Alkaline Earth Metals Resulting from Neutron Irradiation of Uranium," Naturwissenschaften vol.27, p. 11 (Jan. 1939), summary, translated by H. Graetzer in The Discovery of Nuclear Fission (N.Y.: Van Nostrand Reinhold, 1971), p. 44-47.|
|"Verification of the Creation of Radioactive Barium Isotopes from Uranium and Thorium by Neutron Irradiation; Identification of Additional Radioactive Fragments from Uranium Fission" . O. Hahn and F. Strassman. Naturwissenschaften, February 10, 1939, volume 27, p. 89-95. Translated by H. Graetzer.|
|"Disintegration of Uranium by Neutrons: a New Type of Nuclear Reaction". Lise Meitner, and Otto Frisch. Nature, Feb. 11, 1939, volume 143, p. 239. Also in text.|
|"Disintegration of Heavy Nuclei". Niels Bohr. Nature, Feb. 25, 1939, volume 143, p. 330|
|"Departure," a chapter from Atoms in the Family: My Life with Enrico Fermi,
by Laura Fermi. Chicago: University of Chicago Press, 1954.
Reprinted from Atoms in the Family, published by the University of Chicago Press, Copyright © 1954 by The University of Chicago. All rights reserved.
|"A Study of the Discovery of Fission" . Esther B. Sparberg. American Journal of Physics, January 1964, volume 32, p. 2.|
"The two maps"
Oersted Medal Response at the joint American Physical
Society-American Association of Physics Teachers meeting, Chicago, 22 January 1980. Gerald Holton. American Journal of Physics, December 1980, volume 48, no. 12, p. 1014.
|"The Discovery of Fission". Otto Frisch and James Wheeler. Physics Today, November 1967, p. 43.|
|"Mechanism of Fission" . John Wheeler, Physics Today, November 1967, p. 49.|