@misc{indiciaece44fa6f3520,
  title = {A relation between landsat digital numbers, surface reflectance, and the cosine of the solar zenith angle},
  author = {William S. Kowalik and Stuart E. Marsh and Ronald J. P. Lyon},
  year = {1982},
  doi = {10.1016/0034-4257(82)90006-2},
  url = {https://pubs.usgs.gov/publication/70011800},
  note = {Source identifier: 70011800}
}