@misc{indiciaef934e4e2198f,
  title = {Geomagnetic reversals},
  author = {A. Cox},
  year = {1969},
  doi = {10.1126/science.163.3864.237},
  url = {https://pubs.usgs.gov/publication/70010064},
  note = {Source identifier: 70010064}
}