@misc{indiciaef394ded59312,
  title = {Frequency modulation and the human ear.},
  author = {J J GROEN and R M VERSTEEGH},
  year = {1957},
  doi = {10.3109/00016485709130364},
  url = {https://pubmed.ncbi.nlm.nih.gov/13434901/},
  note = {Source identifier: 13434901}
}