1. Acton, E.K. (2011). On gender differences in the distribution of um and uh. University of Pennsylvania Working Papers in Linguistics, 17(2), 1–9.
2. Normative disfl uency data for early childhood stuttering;Ambrose;Journal of Speech Language and Hearing Research 42,1999
3. Infl uence of gender and educational status on fl uent adults' speech fl uency. Logopedia;Andrade;Foniatria y Audiologia,2011
4. Is disfl uency just diffi culty?;Bard,2001
5. Bear, J., Dowding, J., Shriberg, E., & Price, P. (1993). A system for labeling selfrepairs in speech. Technical Note 522. SRI International.