@misc{indiciae7ad44d3196bc,
  title = {Direct observation of frictional contacts: New insights for state-dependent properties},
  author = {James H. Dieterich and B.D. Kilgore},
  year = {1994},
  doi = {10.1007/bf00874332},
  url = {https://pubs.usgs.gov/publication/70016962},
  note = {Source identifier: 70016962}
}