@misc{indiciaef5a345253319,
  title = {Preliminary summary of the U.S. Geological Survey strong-motion records from the October 15, 1979 Imperial Valley earthquake},
  author = {R. L. Porcella and R.B. Matthiesen},
  year = {1979},
  doi = {10.3133/ofr791654},
  url = {https://pubs.usgs.gov/publication/ofr791654},
  note = {Source identifier: ofr791654}
}