Bachmann-Mann, M. (1944). The quantitative differentiation of samples of written language. Psychological Monographs, 56(2), 39-74. doi:10.1037/h0093510. [FULLTEXT]
A History of Psycholinguistics
Bibliography for Levelt (2013)

Bachmann-Mann, M. (1944). The quantitative differentiation of samples of written language. Psychological Monographs, 56(2), 39-74. doi:10.1037/h0093510. [FULLTEXT]