Helen, F. (1944). The quantitative differentiation of samples of spoken language. Studies in language behavior: Psychological Monographs, 56(2), 19-38. doi:10.1037/h0093509. [FULLTEXT]
A History of Psycholinguistics
Bibliography for Levelt (2013)
Helen, F. (1944). The quantitative differentiation of samples of spoken language. Studies in language behavior: Psychological Monographs, 56(2), 19-38. doi:10.1037/h0093509. [FULLTEXT]