@misc{indiciaed34fc542cfe7,
  title = {Estimating V̄s(30) (or NEHRP site classes) from shallow velocity models (depths < 30 m)},
  author = {David M. Boore},
  year = {2004},
  doi = {10.1785/0120030105},
  url = {https://pubs.usgs.gov/publication/70027259},
  note = {Source identifier: 70027259}
}