@misc{indiciaedfd916cd76c4,
  title = {Preliminary stress measurements in central California using the hydraulic fracturing technique},
  author = {Mark D. Zoback and J. H. Healy and J. C. Roller},
  year = {1977},
  doi = {10.1007/bf01637101},
  url = {https://pubs.usgs.gov/publication/70001087},
  note = {Source identifier: 70001087}
}