Velten, H. V. (1943). The growth of phonemic and lexical patterns in infant language. Language, 19, 281-292. doi:10.2307/409932. [FULLTEXT]
A History of Psycholinguistics
Bibliography for Levelt (2013)

Velten, H. V. (1943). The growth of phonemic and lexical patterns in infant language. Language, 19, 281-292. doi:10.2307/409932. [FULLTEXT]