@misc{indiciae89b2955379f8,
  title = {Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: July 1981},
  author = {J.B. Townshend and J.E. Papp and E.A. Sauter},
  year = {1981},
  doi = {10.3133/ofr81300g},
  url = {https://pubs.usgs.gov/publication/ofr81300G},
  note = {Source identifier: ofr81300G}
}