@misc{indiciae7127147bda95,
  title = {Proceedings of the U.S. Geological Survey Sixth Biennial Geographic Information Science Workshop, Denver, Colorado, April 24-28, 2006},
  author = {John W. Brakebill and Jennifer B. Sieverling and Peter G. Chirico},
  year = {2006},
  doi = {10.3133/sir20065094},
  url = {https://pubs.usgs.gov/publication/sir20065094},
  note = {Source identifier: sir20065094}
}