@misc{indiciae905cf26ee79a,
  title = {Preliminary models of the core field},
  author = {Lemouel, J. L. and Galdeano, A. and Ducruix, J.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19820013785},
  note = {Source identifier: 19820013785}
}