@misc{indiciaef5f0476e0e7f,
  title = {Reversals of the earth's magnetic field},
  author = {Allan Cox and Richard R. Doell and G. Brent Dalrymple},
  year = {1964},
  doi = {10.1126/science.144.3626.1537},
  url = {https://pubs.usgs.gov/publication/70221821},
  note = {Source identifier: 70221821}
}