@misc{indiciae10c2d8d5a6bf,
  title = {What do we mean by accuracy in geomagnetic measurements?},
  author = {A.W. Green},
  year = {1990},
  doi = {10.1016/0031-9201(90)90203-a},
  url = {https://pubs.usgs.gov/publication/70015817},
  note = {Source identifier: 70015817}
}