@misc{indiciaeec2c60be43b3,
  title = {Reflected seismic waves and their effect on strong shaking during the 1989 Loma Prieta, California, earthquake},
  author = {Rufus D. Catchings and W.M. Kohler},
  year = {1996},
  doi = {10.1785/bssa0860051401},
  url = {https://pubs.usgs.gov/publication/70246866},
  note = {Source identifier: 70246866}
}