@misc{indiciae6edba4f646ae,
  title = {Results of the U. S. Geological Survey's analytical evaluation program for standard reference samples distributed in October 2000},
  author = {B.F. Connor and J.P. Currier and M.T. Woodworth},
  year = {2001},
  doi = {10.3133/ofr01137},
  url = {https://pubs.usgs.gov/publication/ofr01137},
  note = {Source identifier: ofr01137}
}