@misc{indiciaefc2bb2bd6ffc,
  title = {Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: October 1986},
  author = {John B. Townshend and H.K. Rex and L.Y. Torrence},
  year = {1986},
  doi = {10.3133/ofr86300j},
  url = {https://pubs.usgs.gov/publication/ofr86300J},
  note = {Source identifier: ofr86300J}
}