@misc{indiciae4147df695e97,
  title = {USGS library for S-PLUS for Windows -- Release 2.1},
  author = {J. R. Slack and D. L. Lorenz and and others},
  year = {2003},
  doi = {10.3133/ofr03357},
  url = {https://pubs.usgs.gov/publication/ofr03357},
  note = {Source identifier: ofr03357}
}