@misc{indiciaee44d53e73169,
  title = {Empirical evidence for acceleration-dependent amplification factors},
  author = {R. D. Borcherdt},
  year = {2002},
  doi = {10.1785/0120010170},
  url = {https://pubs.usgs.gov/publication/70024853},
  note = {Source identifier: 70024853}
}