TY  - RPRT
TI  - Stuttering and disfluency as two reliable and unambiguous response classes.
AU  - J D MacDonald
AU  - R R Martin
PY  - 1973
DO  - 10.1044/jshr.1604.691
UR  - https://pubmed.ncbi.nlm.nih.gov/4783809/
ID  - 4783809
ER  -