@misc{indiciae157b5e9c934c,
  title = {HYPOELLIPSE/version 2.0; a computer program for determining local earthquake hydrocentral parameters, magnitude, and first motion pattern},
  author = {John C. Lahr},
  year = {1989},
  doi = {10.3133/ofr89116},
  url = {https://pubs.usgs.gov/publication/ofr89116},
  note = {Source identifier: ofr89116}
}