@misc{indiciae3954b5f17712,
  title = {Monitoring global vegetation},
  author = {Macdonald, R. B. and Houston, A. G. and Heydorn, R. P. and Botkin, D. B. and Estes, J. E. and Strahler, A. H.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19830006283},
  note = {Source identifier: 19830006283}
}