@misc{indiciaeb300bec1666b,
  title = {A new ultrasonic imaging system using time delay spectrometry.},
  author = {R C Heyser and D H Le Croissette},
  year = {1974},
  doi = {10.1016/0301-5629(74)90002-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/4428522/},
  note = {Source identifier: 4428522}
}