@misc{indiciae3dbc363595e2,
  title = {Longitudinal waves in cubic crystals.},
  author = {T Y Thomas},
  year = {1966},
  doi = {10.1073/pnas.55.5.1011},
  url = {https://pubmed.ncbi.nlm.nih.gov/16591350/},
  note = {Source identifier: 16591350}
}