1. Repp, B. H.“Posner’s paradigm” and categorical perception: A negative study. Status Report on Speech Research. Haskins Laboratories: 1976,SR-45/46, 153–161.
2. Eimas, P. D., & Miller, J.Auditory memory and the processing of speech. Developmental studies of speech perception: Progress Report No. 3. Providence, R.I: W. S. Hunter Laboratory of Psychology, 1975.