@misc{indiciae3a419f7324ee,
  title = {ERTS data user investigation to develop a multistage forest sampling inventory system},
  author = {Langley, P. G. and Vanroessel, J. W.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19730023527},
  note = {Source identifier: 19730023527}
}