@misc{indiciaeb9cafa45229f,
  title = {Surface acoustic impedance and causality.},
  author = {Y H Berthelot},
  year = {2001},
  doi = {10.1121/1.1352089},
  url = {https://pubmed.ncbi.nlm.nih.gov/11325142/},
  note = {Source identifier: 11325142}
}