@misc{indiciae20aa2be1b70f,
  title = {A simple mechanical adapter for variable side-tone delay.},
  author = {W R TIFFANY and C N HANLEY and L C SUTHERLAND},
  year = {1954},
  doi = {10.1044/jshd.1904.504},
  url = {https://pubmed.ncbi.nlm.nih.gov/13222465/},
  note = {Source identifier: 13222465}
}