@misc{indiciae36d91457b399,
  title = {Urasonic pulse-echo measurements in teeth.},
  author = {F E Barber and S Lees and R R Lobene},
  year = {1969},
  doi = {10.1016/0003-9969(69)90166-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/5257202/},
  note = {Source identifier: 5257202}
}