@misc{indiciae27364e9173ca,
  title = {Trill threshold revisited.},
  author = {J I Shonle and K E Horan},
  year = {1976},
  doi = {10.1121/1.380858},
  url = {https://pubmed.ncbi.nlm.nih.gov/1249334/},
  note = {Source identifier: 1249334}
}