@misc{indiciae5145d6d15a6e,
  title = {Gamma-ray spectrometer measurement of 238 U/ 235 U in uranium ore from a natural reactor at Oklo, Gabon},
  author = {Robert M. Moxham},
  year = {1976},
  url = {https://pubs.usgs.gov/publication/70156648},
  note = {Source identifier: 70156648}
}