van Driem, G. (2005) The language organism: the Leiden theory of language evolution. In James W. Minett and William S.-Y. Wang, editors, Language Acquisition, Change and Emergence: Essays in Evolutionary Linguistics . City University of Hong Kong Press.

van Driem, G. (2005) The language organism: the Leiden theory of language evolution. In James W. Minett and William S.-Y. Wang, editors, Language Acquisition, Change and Emergence: Essays in Evolutionary Linguistics. City University of Hong Kong Press.

2007	-	Language Evolution as a Darwinian Process: Computational Studies - Oudeyer,Kaplan	::	1
		van Driem G (2003) The language organism: the leiden theory of language evolution. In: Mi´rovsky J, Kotesovcova A, Hajicova E (eds) Proceedings of the XVIIth International Congress of Linguists Prague: Matfyzpress vydavatelstvi´ Matematicko-fyzika´lni´ fakulty Univerzity Karlovy, Prague