@misc{indiciaed8870825f7d1,
  title = {Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: July 1986},
  author = {John B. Townshend and J.E. Papp and H.K. Rex and L.Y. Torrence},
  year = {1986},
  doi = {10.3133/ofr86300g},
  url = {https://pubs.usgs.gov/publication/ofr86300G},
  note = {Source identifier: ofr86300G}
}