@misc{indiciae56b0a6745e63,
  title = {A vocal placement model: I. Perceptual aspects.},
  author = {A C Nichols and S Shellenberger},
  year = {1985},
  doi = {10.1016/0021-9924(85)90026-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/4056084/},
  note = {Source identifier: 4056084}
}