@misc{indiciaee5c0932bc471,
  title = {The source spectrum in professional singing.},
  author = {J Sundberg},
  year = {1973},
  doi = {10.1159/000263672},
  url = {https://pubmed.ncbi.nlm.nih.gov/4700765/},
  note = {Source identifier: 4700765}
}