@misc{indiciae270934b1064a,
  title = {STEREO; a computer program for projecting and plotting stereograms},
  author = {Peter German and Carl E. Johnson},
  year = {1983},
  doi = {10.3133/ofr82726},
  url = {https://pubs.usgs.gov/publication/ofr82726},
  note = {Source identifier: ofr82726}
}