@misc{indiciae7ad5e5251496,
  title = {A method for estimating proportion of area occupied},
  author = {P.H. Geissler and M.R. Fuller and J. A. Mosher},
  year = {1985},
  url = {https://pubs.usgs.gov/publication/5210640},
  note = {Source identifier: 5210640}
}