@misc{indiciaeac89cfebd26a,
  title = {Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: September 1984},
  author = {John B. Townshend and J.E. Papp and E.A. Sauter and L.Y. Torrence and P.A. Franklin},
  year = {1984},
  doi = {10.3133/ofr84300i},
  url = {https://pubs.usgs.gov/publication/ofr84300I},
  note = {Source identifier: ofr84300I}
}