Batali, J. (in press). The negotiation and acquisition of recursive grammars as a result of competition among exemplars. In T. Briscoe (Ed.), Linguistic Evolution through Language Acquisition: Formal and Computational Models. Cambridge: Cambridge University Press.

Bloom, P. (2000). How Children Learn the Meaning of Words. Cambridge, MA: MIT Press.

Clark, E.V. (1988). On the logic of contrast. Journal of Child Language, 15, 317-335.

Hurford, J.R. (1989). Biological evolution of the saussurean sign as a component of the language acquisition device. Lingua, 77, 187-222.

Kirby, S. (2000). Syntax without Natural Selection: How compositionality emerges from vocabulary in a population of learners. In C. Knight, M. Studdert-Kennedy & J.R. Hurford (Eds.), The Evolutionary Emergence of Language: Social function and the origins of linguistic form. Cambridge: Cambridge University Press.

Nowak, M.A., Plotkin, J.B. & Jansen, V.A.A. (2000). The evolution of syntactic communication. Nature, 404, 495-498.

Oliphant, M. (1998). Rethinking the language bottleneck: Why don't animals learn to communicate? Unpublished manuscript, Department of Theoretical and Applied Linguistics, University of Edinburgh.

Oliphant, M. (1999). The learning barrier: Moving from innate to learned systems of communication. Adaptive Behavior, 7(3/4), 371-384.

Pinker, S. & Bloom, P,. (1990). Natural language and natural selection. Behavioral and Brain Sciences, 13, 707-784.

Savage-Rumbaugh, S., McDonald, K., Sevcik, R.A., Hopkins, W.D. & Rubert, E. (1986). Spontaneous Symbol Acquisition and Communicative Use by Pygmy Chimpanzees (Pan paniscus). Journal of Experimental Psychology: General, 115(3), 211-235.