@misc{indiciae4feaedc23c72,
  title = {Improved ultrasonic sensitivity using pseudo-random binary-code phase-modulated signals.},
  author = {J Y Chapelon and D Cathignol and C Fourcade},
  year = {1979},
  doi = {10.1177/016173467900100305},
  url = {https://pubmed.ncbi.nlm.nih.gov/575825/},
  note = {Source identifier: 575825}
}