@misc{indiciae2b87f613e350,
  title = {A method of quantitative analysis of trace elements in silicate rocks by energy-dispersive X-ray fluorescence spectroscopy},
  author = {J.C. Jackson and R. A. Ayuso},
  year = {1988},
  doi = {10.3133/ofr88432},
  url = {https://pubs.usgs.gov/publication/ofr88432},
  note = {Source identifier: ofr88432}
}