@misc{indiciae6f5972df9c6b,
  title = {Results of the U.S. Geological Survey's Analytical Evaluation Program for standard reference samples distributed in March 1999},
  author = {Jerry W. Farrar and Kimberly M. Chleboun},
  year = {1999},
  doi = {10.3133/ofr99259},
  url = {https://pubs.usgs.gov/publication/ofr99259},
  note = {Source identifier: ofr99259}
}