@misc{indiciae4073dec8aab9,
  title = {Stuttering and disfluency as two reliable and unambiguous response classes.},
  author = {J D MacDonald and R R Martin},
  year = {1973},
  doi = {10.1044/jshr.1604.691},
  url = {https://pubmed.ncbi.nlm.nih.gov/4783809/},
  note = {Source identifier: 4783809}
}