@misc{indiciaecfff2e142333,
  title = {A solid-inclusion borehole probe to determine three-dimensional stress changes at a point in a rock mass},
  author = {Thomas C. Nichols and John F. Abel and Fitzhugh T. Lee},
  year = {1968},
  doi = {10.3133/b1258c},
  url = {https://pubs.usgs.gov/publication/b1258C},
  note = {Source identifier: b1258C}
}