@misc{indiciaed34c1a6377a8,
  title = {Proceedings of conference XLVII; a workshop on USGS's new generation of probabilistic ground motion maps and their applications to building codes},
  year = {1989},
  doi = {10.3133/ofr89364},
  url = {https://pubs.usgs.gov/publication/ofr89364},
  note = {Source identifier: ofr89364}
}