@misc{indiciaedbae81bc44df,
  title = {An exact anelastic model for the free-surface reflection of P and S-I waves},
  author = {Roger D. Borcherdt and G. Glassmoyer},
  year = {1989},
  doi = {10.1785/bssa0790030842},
  url = {https://pubs.usgs.gov/publication/70233980},
  note = {Source identifier: 70233980}
}