@misc{indiciae06d33927f4a6,
  title = {Analogue implementation of analytic signal processing for pulse-echo systems.},
  author = {P M Gammell},
  year = {1981},
  doi = {10.1016/0041-624x(81)90019-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/7292778/},
  note = {Source identifier: 7292778}
}