@misc{indiciaefc08618ff7f5,
  title = {Estimates of site-dependent response spectra for design (methodology and justification)},
  author = {Roger D. Borcherdt},
  year = {1994},
  doi = {10.1193/1.1585791},
  url = {https://pubs.usgs.gov/publication/70234112},
  note = {Source identifier: 70234112}
}