@misc{indiciaead8fec33e129,
  title = {RAREPLOT; a computer program for plotting rare earth element data using IBM PC, Lotus 1-2-3, and a Hewlett-Packard plotter},
  author = {R.R. Schumann},
  year = {1986},
  doi = {10.3133/ofr86570a},
  url = {https://pubs.usgs.gov/publication/ofr86570A},
  note = {Source identifier: ofr86570A}
}