@misc{indiciaea8fe26569617,
  title = {Proceedings: Grey scale imaging in sonar.},
  author = {I Donald},
  year = {1975},
  doi = {10.1177/003693307502000415},
  url = {https://pubmed.ncbi.nlm.nih.gov/1162335/},
  note = {Source identifier: 1162335}
}