@misc{indiciaea7d10884dbc7,
  title = {The lanthanides and yttrium in minerals of the apatite group; a review},
  author = {Michael Fleischer and Z. S. Altschuler},
  year = {1982},
  doi = {10.3133/ofr82783},
  url = {https://pubs.usgs.gov/publication/ofr82783},
  note = {Source identifier: ofr82783}
}