@misc{indiciaee95f4c2b8ea2,
  title = {Rayleigh-wave diffractions due to a void in the layered half space},
  author = {J. Xia and Y. Xu and R. D. Miller and Jonathan E. Nyquist},
  year = {2006},
  doi = {10.1190/1.2369782},
  url = {https://pubs.usgs.gov/publication/70031032},
  note = {Source identifier: 70031032}
}