@misc{indiciaeb18df1c479c3,
  title = {Determination of the rare-earth elements in geological materials by inductively coupled plasma mass spectrometry},
  author = {F.E. Lichte and Allen L. Meier and James G. Crock},
  year = {2002},
  doi = {10.1021/ac00135a018},
  url = {https://pubs.usgs.gov/publication/70014731},
  note = {Source identifier: 70014731}
}