@misc{indiciae06bb0b1cd38e,
  title = {Spectral reflectance and photometric properties of selected rocks},
  author = {Robert D. Watson},
  year = {1971},
  doi = {10.1016/0034-4257(71)90082-4},
  url = {https://pubs.usgs.gov/publication/70010345},
  note = {Source identifier: 70010345}
}