@misc{indiciae73da0bbe728b,
  title = {Characteristics of faults and shear zones in deep mines},
  author = {R. E. Wallace and H. T. Morris},
  year = {1986},
  doi = {10.1007/bf00875721},
  url = {https://pubs.usgs.gov/publication/70014911},
  note = {Source identifier: 70014911}
}