@misc{indiciaeba127c50e960,
  title = {A bibliography of terrain modeling (geomorphometry), the quantitative representation of topography: Supplement 4.0},
  author = {Richard J. Pike},
  year = {2002},
  doi = {10.3133/ofr02465},
  url = {https://pubs.usgs.gov/publication/ofr02465},
  note = {Source identifier: ofr02465}
}