@misc{indiciae6bd61ff2e010,
  title = {In-situ stress project, Technical Report Number 8; Calibration and accuracy of electronic gauges used in the hydrofracturing experiment, Cajon Pass, California},
  author = {W.S. Updegrove and J.E. Springer},
  year = {1987},
  doi = {10.3133/ofr87487},
  url = {https://pubs.usgs.gov/publication/ofr87487},
  note = {Source identifier: ofr87487}
}