@misc{indiciae33f271917d18,
  title = {Loma Prieta, California, earthquake October 18 (GMT), 1989; processed strong-motion records, Volume 1},
  author = {A. G. Brady and P. N. Mork},
  year = {1990},
  doi = {10.3133/ofr90247},
  url = {https://pubs.usgs.gov/publication/ofr90247},
  note = {Source identifier: ofr90247}
}