@misc{indiciae09a4d6495fb5,
  title = {Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: June 1982},
  author = {John B. Townshend and J.E. Papp and E.A. Sauter and L.Y. Torrence and T.K. Cunningham},
  year = {1982},
  doi = {10.3133/ofr82300f},
  url = {https://pubs.usgs.gov/publication/ofr82300F},
  note = {Source identifier: ofr82300F}
}