@misc{indiciae78ac1e18dceb,
  title = {Core and Crustal Geomagnetic Field Modeling Using Oersted and Magsat Data},
  author = {Constable, Catherine and Parker, Robert L.},
  year = {1999},
  url = {https://ntrs.nasa.gov/citations/20000013937},
  note = {Source identifier: 20000013937}
}