@misc{indiciae46b15b0fda0f,
  title = {Electric and magnetic fields},
  author = {Kaufman, H. R. and Robinson, R. S. and Etters, R. D.},
  year = {1982},
  url = {https://ntrs.nasa.gov/citations/19820020474},
  note = {Source identifier: 19820020474}
}