@misc{indiciaefdad14865100,
  title = {Simple model for granular friction.},
  author = {H Hayakawa},
  year = {1999},
  doi = {10.1103/physreve.60.4500},
  url = {https://pubmed.ncbi.nlm.nih.gov/11970305/},
  note = {Source identifier: 11970305}
}