@misc{indiciaee35bcffb8aec,
  title = {A survey of natural aggregate properties and characteristics important in remote sensing and airborne geophysics},
  author = {D. H. Knepper and W. H. Langer and S. Miller},
  year = {1995},
  doi = {10.1007/bf02257020},
  url = {https://pubs.usgs.gov/publication/70019032},
  note = {Source identifier: 70019032}
}