@misc{indiciaef72989a72e18,
  title = {In-situ measurements of seismic velocity at 27 locations in the Los Angeles, California region},
  author = {James F. Gibbs and Thomas E. Fumal and Edward F. Roth},
  year = {1980},
  doi = {10.3133/ofr80378},
  url = {https://pubs.usgs.gov/publication/ofr80378},
  note = {Source identifier: ofr80378}
}