@misc{indiciae03d809bde63c,
  title = {Extensive inventory of forest resources by multistage sampling},
  author = {Aldrich, R. C. and Dana, R. W. and Roberts, E. H.},
  year = {1976},
  url = {https://ntrs.nasa.gov/citations/19760022591},
  note = {Source identifier: 19760022591}
}