@misc{indiciaee947c41e9f3c,
  title = {Satellite Data for Geomagnetic Field Modeling},
  author = {Langel, R. A. and Baldwin, R. T.},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19920019381},
  note = {Source identifier: 19920019381}
}