@misc{indiciae86bb200980c1,
  title = {Adjusted geomagnetic data—Theoretical basis and validation},
  author = {E. Joshua Rigler and Abram E. Claycomb},
  year = {2020},
  doi = {10.3133/ofr20201053},
  url = {https://pubs.usgs.gov/publication/ofr20201053},
  note = {Source identifier: ofr20201053}
}