@misc{indiciaec3c2ccb450bd,
  title = {The function of echonavigation among swiftlets.},
  author = {L Medway},
  year = {1967},
  doi = {10.1016/0003-3472(67)90038-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/6055094/},
  note = {Source identifier: 6055094}
}