Liberman, A. M. (1957). Some results of research on speech perception. The Journal of the Acoustical Society of America, 29, 117-123. doi:10.1121/1.1908635. [FULLTEXT]
A History of Psycholinguistics
Bibliography for Levelt (2013)

Liberman, A. M. (1957). Some results of research on speech perception. The Journal of the Acoustical Society of America, 29, 117-123. doi:10.1121/1.1908635. [FULLTEXT]