@misc{indiciaeb32c296e3da7,
  title = {A bibliography of geomorphometry with a topical key to the literature and an introduction to the numerical characterization of topographic form},
  author = {R.J. Pike},
  year = {1993},
  doi = {10.3133/ofr93262c},
  url = {https://pubs.usgs.gov/publication/ofr93262C},
  note = {Source identifier: ofr93262C}
}