@misc{indiciae1098f7e9def6,
  title = {Spiral patterns in oscillated granular layers.},
  author = {J R de Bruyn and B C Lewis and M D Shattuck and H L Swinney},
  year = {2001},
  doi = {10.1103/physreve.63.041305},
  url = {https://pubmed.ncbi.nlm.nih.gov/11308836/},
  note = {Source identifier: 11308836}
}