@misc{indiciaeac55488732e1,
  title = {Hydraulic fracturing in situ stress measurements to 2.1 km depth at Cajon Pass, California},
  author = {J. H. Healy and Mark D. Zoback},
  year = {2012},
  doi = {10.1029/gl015i009p01005},
  url = {https://pubs.usgs.gov/publication/70014407},
  note = {Source identifier: 70014407}
}