@misc{indiciaebb22d46e25ef,
  title = {Vegetation reflectance measurements as a function of solar zenith angle},
  author = {Kimes, D. S. and Smith, J. A. and Ranson, K. J.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19810031939},
  note = {Source identifier: 19810031939}
}