@misc{indiciaef1172fc8044b,
  title = {ASTER-Derived 30-Meter-Resolution Digital Elevation Models of Afghanistan},
  author = {Peter G. Chirico and Michael B. Warner},
  year = {2007},
  doi = {10.3133/ds318},
  url = {https://pubs.usgs.gov/publication/ds318},
  note = {Source identifier: ds318}
}