@misc{indiciaeedb8fcbec79b,
  title = {Alternate forms of the associated Legendre functions for use in geomagnetic modeling.},
  author = {L.R. Alldredge and E.R. Benton},
  year = {1986},
  doi = {10.5636/jgg.38.599},
  url = {https://pubs.usgs.gov/publication/70014881},
  note = {Source identifier: 70014881}
}