@misc{indiciaeb8d9bb521625,
  title = {Geographic Information Systems Laboratory at Haskell Indian Nations University},
  author = {Thomas J. Trombley and Michael D. Kemppainen},
  year = {1998},
  doi = {10.3133/fs01098},
  url = {https://pubs.usgs.gov/publication/fs01098},
  note = {Source identifier: fs01098}
}