@misc{indiciaed463dcea20ee,
  title = {Progress on ground motion predictions for the San Francisco Bay region, California},
  author = {Roger D. Borcherdt and J. F. Gibbs and T. E. Fumal},
  year = {1978},
  url = {https://pubs.usgs.gov/publication/70234312},
  note = {Source identifier: 70234312}
}