@misc{indiciaea5ffa7359db5,
  title = {Assessment of models proposed for the 1985 revision of the international geomagnetic reference field},
  author = {N.W. Peddie and A.K. Zunde},
  year = {1987},
  doi = {10.1016/0031-9201(87)90156-7},
  url = {https://pubs.usgs.gov/publication/70014206},
  note = {Source identifier: 70014206}
}