@misc{indiciae520af55e8387,
  title = {Estimation of response-spectral values as functions of magnitude, distance, and site conditions},
  author = {W. B. Joyner and David M. Boore},
  year = {1982},
  doi = {10.3133/ofr82881},
  url = {https://pubs.usgs.gov/publication/ofr82881},
  note = {Source identifier: ofr82881}
}