@misc{indiciaec7403fdd3e6e,
  title = {Determination of amplitude and duration magnitudes and site residuals from short-period seismographs in northern California},
  author = {Jerry P. Eaton},
  year = {1991},
  doi = {10.3133/ofr91592},
  url = {https://pubs.usgs.gov/publication/ofr91592},
  note = {Source identifier: ofr91592}
}