@misc{indiciae16dd05fc6875,
  title = {Shaded relief, topographic slope, and land use planning in the Los Altos Hills area, California - an example of the use of elevation data},
  author = {Suzanna K. Brooks and Arthur H. Lachenbruch and Carl M. Wentworth},
  year = {2002},
  doi = {10.3133/ofr02351},
  url = {https://pubs.usgs.gov/publication/ofr02351},
  note = {Source identifier: ofr02351}
}