@misc{indiciaebe62537b7899,
  title = {Limited-interval definitions of the photometric functions of lunar crater walls by photography from orbiting Apollo},
  author = {R.L. Wildey},
  year = {1971},
  doi = {10.1016/0019-1035(71)90038-8},
  url = {https://pubs.usgs.gov/publication/70010027},
  note = {Source identifier: 70010027}
}