@misc{indiciaef4db0a37124c,
  title = {Computer program modifications of Open-file report 82-1065; a comprehensive system for interpreting seismic-refraction and arrival-time data using interactive computer methods},
  author = {Hans D. Ackermann and Leroy W. Pankratz and Danny A. Dansereau},
  year = {1983},
  doi = {10.3133/ofr83604},
  url = {https://pubs.usgs.gov/publication/ofr83604},
  note = {Source identifier: ofr83604}
}