@misc{indiciaea81ccce66a2c,
  title = {Slingram data processing and profiling programs},
  author = {P. V. Raab},
  year = {1983},
  doi = {10.3133/ofr83461},
  url = {https://pubs.usgs.gov/publication/ofr83461},
  note = {Source identifier: ofr83461}
}