Ritchie, G. and Kirby, S. (2005) Selection, domestication, and the emergence of learned communication systems. In Second International Symposium on the Emergence and Evolution of Linguistic Communication .

2006	-	Modelling the transititon to learned communication: an initial investigation into the ecological conditions favouring cultural transmission - Ritchie,Kirby	::
		Ritchie, G., & Kirby, S. (2005). Selection, domestication, and the emergence of learned communication systems. In Proceedings of AISB 2005: Social intelligence and interaction in animals, robots and agents.