@misc{indiciae7ea54220206f,
  title = {Frictional strength and the effective pressure law of montmorillonite and illite clays},
  author = {C. Morrow and B. Radney and J. Byerlee},
  year = {1992},
  doi = {10.1016/s0074-6142(08)62815-6},
  url = {https://pubs.usgs.gov/publication/70243305},
  note = {Source identifier: 70243305}
}