1. Baayen, R.H. A Corpus-Based Approach to Morphological Productivity. Statistical Analysis and Psycholinguistic Interpretation. Diss. Free University, Amsterdam, 1989.
2. Baayen, R.H., and Lieber, R. ?Productivity and English Derivation: A Corpus Based Study.? Linguistics, 29 (1991), 801?43.
3. Baayen, R.H. ?A Stochastic Process for Word Frequency Distributions.? In Proceedings of the 29th Annual Meeting of the Association for Computational Linguistics. Ed. D.E. Appelt. 1991 (a), pp. 271?78.
4. Baayen, R.H. ?A Quantitative Approach to Morphological Productivity.? In Yearbook of Morphology 1991. Eds. G.E. Booij and J. van Marle. Dordrecht: Kluwer, 1991 (b), 109?49.
5. Bolinger, D.L. ?On Defining the Morpheme.? In Forms of English. Accent, Morpheme, Order. Ed. D.L. Bolinger. Cambridge, MA: Harvard University Press, 1948, pp. 183?89.