Lieberman, P. (2003) Motor control, speech, and the evolution of human language. In M.H. Christiansen and S. Kirby, editors, Language Evolution: The States of the Art . Oxford University Press.

Lieberman, P. (2003) Motor control, speech, and the evolution of human language. In M.H. Christiansen and S. Kirby, editors, Language Evolution: The States of the Art. Oxford University Press.

2003	-	Language Evolution: Consensus and Controversies - Christiansen,Kirby	::	14
2008	-	Language as shaped by the brain - Christiansen,Chater	::	5
2005	-	The Major Transitions in the Evolution of Language - Zuidema	::	2