@misc{indiciaec7ebd1131e82,
  title = {The human footprint in the west: a large-scale analysis of human impacts},
  author = {Matthias Leu},
  year = {2003},
  doi = {10.3133/fs12703},
  url = {https://pubs.usgs.gov/publication/fs12703},
  note = {Source identifier: fs12703}
}