@misc{indiciaeb20cd097c0a5,
  title = {Preliminary report on high-frequency near-source recordings at Permanente Rock Quarry in Cupertino, California},
  author = {Chris Dietel},
  year = {1986},
  doi = {10.3133/ofr86330},
  url = {https://pubs.usgs.gov/publication/ofr86330},
  note = {Source identifier: ofr86330}
}