TY  - RPRT
TI  - A vocal placement model: I. Perceptual aspects.
AU  - A C Nichols
AU  - S Shellenberger
PY  - 1985
DO  - 10.1016/0021-9924(85)90026-7
UR  - https://pubmed.ncbi.nlm.nih.gov/4056084/
ID  - 4056084
ER  -