@misc{indiciae734a4f3c7c2e,
  title = {Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: May 1979},
  author = {J.B. Townshend and J.E. Papp and E.A. Sauter and S.P. Tilton},
  year = {1979},
  doi = {10.3133/ofr79300e},
  url = {https://pubs.usgs.gov/publication/ofr79300E},
  note = {Source identifier: ofr79300E}
}