@misc{indiciaeee1b15c1c087,
  title = {Evaluation of multiple polarized radar imagery for the detection of selected cultural features},
  author = {Anthony J. Lewis},
  year = {1968},
  doi = {10.3133/ofr68168},
  url = {https://pubs.usgs.gov/publication/ofr68168},
  note = {Source identifier: ofr68168}
}