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[2] Bohr, N., and Wheeler, J. A. (1939) The mechanism of nuclear fission. Phys. Rev. 56 426-450.
[3] Bernstein, J., and Pollock, F. (1979) The calculation of the electrostatic energy in the liquid drop model of nuclear fission – a pedagogical note. Physica 96A 136-140.
[4] Reed, B. C. (2009) The Bohr-Wheeler spontaneous fission limit: an undergraduate-level derivation. Eur. J. Phys. 30 763-770.
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[7] Details of the calculations of the volume and surface area can be found at
[8] Reed, B. C. (2003) Simple derivation of the Bohr- Wheeler spontaneous fission limit, Am. J. Phys. 71(3), 258-260.