@misc{indiciaeea21b4e53251,
  title = {Reflectance of a vegetation canopy using the Adding method},
  author = {Cooper, K. and Smith, J. A. and Pitts, D.},
  year = {1982},
  url = {https://ntrs.nasa.gov/citations/19830031385},
  note = {Source identifier: 19830031385}
}