@misc{indiciae151e2b5203eb,
  title = {Stress magnitudes in the crust: constraints from stress orientation and relative magnitude data},
  author = {M.L. Zoback and M. Magee},
  year = {1991},
  doi = {10.1098/rsta.1991.0115},
  url = {https://pubs.usgs.gov/publication/70014988},
  note = {Source identifier: 70014988}
}