@misc{indiciae2c3c2668f0cd,
  title = {Digital terrain modeling},
  author = {Richard J. Pike},
  year = {2005},
  doi = {10.1016/b0-12-369398-5/00357-1},
  url = {https://pubs.usgs.gov/publication/70239865},
  note = {Source identifier: 70239865}
}