@misc{indiciae6666650e4916,
  title = {Investigation to develop a multistage forest sampling inventory system using ERTS-1 imagery},
  author = {Langley, P. G. and Vanroessel, J. W. and Wert, S. L.},
  year = {1975},
  url = {https://ntrs.nasa.gov/citations/19750025401},
  note = {Source identifier: 19750025401}
}