@misc{indiciae1a999cbfd123,
  title = {Surface electric fields for North America during historical geomagnetic storms},
  author = {Lisa H. Wei and Nichole Homeier and Jennifer L. Gannon},
  year = {2013},
  doi = {10.1002/swe.20073},
  url = {https://pubs.usgs.gov/publication/70047671},
  note = {Source identifier: 70047671}
}