@misc{indiciaecd5be957596b,
  title = {X-ray spectrometric analysis of major and selected minor elements in silicate rocks utilizing an automatic fusion technique},
  author = {H.N. Elsheimer},
  year = {1987},
  doi = {10.3133/ofr8771},
  url = {https://pubs.usgs.gov/publication/ofr8771},
  note = {Source identifier: ofr8771}
}