@misc{indiciae7440adaa4d43,
  title = {The Government Information Locator Service (GILS)},
  author = {E. Christian},
  year = {1996},
  doi = {10.3233/isu-1996-16104},
  url = {https://pubs.usgs.gov/publication/70018562},
  note = {Source identifier: 70018562}
}