@misc{indiciaeefc62755546e,
  title = {Reflectance produced by a plant leaf},
  author = {Allen, W. A. and Gausman, H. W. and Richardson, A. J.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19710006677},
  note = {Source identifier: 19710006677}
}