@misc{indiciaeca347158135a,
  title = {An avian vocalization detector.},
  author = {M Severns and L Gray and E W Rubel},
  year = {1985},
  doi = {10.1016/0031-9384(85)90388-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/4034722/},
  note = {Source identifier: 4034722}
}