@misc{indiciae6ec8783fdc27,
  title = {Nondestructive testing using air-borne ultrasound.},
  author = {David K Hsu},
  year = {2006},
  doi = {10.1016/j.ultras.2006.05.091},
  url = {https://pubmed.ncbi.nlm.nih.gov/16806380/},
  note = {Source identifier: 16806380}
}