@misc{indiciaec27d9be089be,
  title = {Age recognition from voice.},
  author = {P H Ptacek and E K Sander},
  year = {1966},
  doi = {10.1044/jshr.0902.273},
  url = {https://pubmed.ncbi.nlm.nih.gov/5925532/},
  note = {Source identifier: 5925532}
}