@misc{indiciae1cd1125cf593,
  title = {Slip-rate increase at Parkfield in 1993 detected by high-precision EDM and borehole tensor strainmeters},
  author = {J. Langbein and R. L. Gwyther and R.H.G. Hart and M. T. Gladwin},
  year = {1999},
  url = {https://pubs.usgs.gov/publication/70020971},
  note = {Source identifier: 70020971}
}