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Studdert-Kennedy, M. (2000) Evolutionary implications of the particulate principle: Imitation and the dissociation of phonetic form from semantic function. In Chris Knight and James R. Hurford and Michael Studdert-Kennedy, editors, The Evolutionary Emergence of Language: Social Function and the Origins of Linguistic Form. Cambridge: Cambridge University Press.

Botha, Did language evolve like the vertebrate eye?, 2002	::
Christiansen,Kirby, Language Evolution: Consensus and Controversies, 2003	::	14
Mitchener,Nowak, Competitive Exclusion and Coexistence of Universal Grammars, 2003	::	5
Mitchener, A Mathematical Model of Human Languages: The Interaction of Game Dynamics and Learning Processes, 2003	::	2
Studdert-Kennedy,Goldstein, Launching language: The gestural origin of discrete infinity, 2003	::	5
Zuidema, The Major Transitions in the Evolution of Language, 2005	::	2