@misc{indiciaece263e680c37,
  title = {Formant-frequency differences between isolated whispered and phonated vowel samples produced by adult female subjects.},
  author = {K J Kallail and F W Emanuel},
  year = {1984},
  doi = {10.1044/jshr.2702.251},
  url = {https://pubmed.ncbi.nlm.nih.gov/6738036/},
  note = {Source identifier: 6738036}
}