@misc{indiciae834faa9ec9d5,
  title = {Stereoscopic-pair projection of aerial photographs in map compilation},
  author = {R.R. Coats},
  year = {1960},
  doi = {10.1130/0016-7606(1960)71[629:spoapi]2.0.co;2},
  url = {https://pubs.usgs.gov/publication/70220532},
  note = {Source identifier: 70220532}
}