@misc{indiciaeb44fdb21d982,
  title = {Borehole P- and S-wave velocity at thirteen stations in Southern California},
  author = {James F. Gibbs and David M. Boore and John C. Tinsley and Charles S. Mueller},
  year = {2001},
  doi = {10.3133/ofr01506},
  url = {https://pubs.usgs.gov/publication/ofr01506},
  note = {Source identifier: ofr01506}
}