Miller, G. A. (1969). A psychological method to investigate verbal concepts. Journal of Mathematical Psychology, 6, 169-191. doi:10.1016/0022-2496(69)90001-7. [FULLTEXT]
A History of Psycholinguistics
Bibliography for Levelt (2013)

Miller, G. A. (1969). A psychological method to investigate verbal concepts. Journal of Mathematical Psychology, 6, 169-191. doi:10.1016/0022-2496(69)90001-7. [FULLTEXT]