1. Minett, J. W. and Wang, W. S-Y. (2005) Language Acquisition, Change and Emergence: Essays in Evolutionary Linguistics. City University of Hong Kong Press: Hong Kong.

2. Steels, L. (2005) The emergence and evolution of linguistic structure: from lexical to grammatical communication systems. Connection Science, 17(3-4):213-230.

3. Langacker, R. (1990) Concept, Image, and Symbol: The Cognitive Basis of Grammar. Berlin and New York: Mouton de Gruyter.

4. Goldberg, A. (2006) Constructions at Work. Oxford University Press, Oxford.

5. Jackendoff, R. (1996) The Architecture of the Language Faculty. The MIT Press, Cambridge Ma.

6. Nowak, M.A., N. Komarova, P. Niyogi (2001) Evolution of universal grammar. Science, 291:114-118, 2001

7. Smith, K., Kirby, S., and Brighton, H. (2003). Iterated Learning: a framework for the emergence of language. Artificial Life, 9(4):371-386.

8. Steels, L. (2005) What triggers the emergence of grammar? A. Cangelosi and C.L. Nehaniv (ed.) (2005) Proceedings of the Second International Symposium on the Emergence and Evolution of Linguistic Communication (AISB 2005 Convention, University of Hertfordshire, Hatfield, UK). AISB.

9. Steels, L. (2002) Simulating the evolution of a grammar for case. Fourth International Conference on the Evolution of Language, Harvard University.

10. De Beule, J. and B. Bergen (2006) On the Emergence of Compositionality. Cangelosi, A., K. Smith and W.Smith (eds.) Sixth Conference on Evolution of Language Conference, World Scientific Pub. New York.

11. Steels, L. and M. Loetzsch (2006) Perspective Alignment in Spatial Language. In: K. Coventry, J. Bateman, and T. Tenbrink (eds.) Spatial Language in Dialogue. Oxford University Press, Oxford.

12. Steels, L. (2004) Constructivist Development of Grounded Construction Grammars Scott, D., Daelemans, W. and Walker M. (eds) (2004) Proceedings Annual Meeting Association for Computational Linguistic Conference. Barcelona. p. 9-19.

13. De Beule, J. and Steels, L. (2005) Hierarchy in Fluid Construction Grammar. In Furbach U., editor, Proceedings of KI-2005, pages 1-15. Lecture Notes in Computer Science. Springer-Verlag, Berlin.

14. Steels, L. and J. Bleys (2005) Planning What To Say: Second Order Semantics for Fluid Construction Grammars. In: Proceedings of CAEPIA 2005, Santiago. LNAI Springer-Verlag, Berlin.

15. Tomasello (1995). Joint attention as social cognition. In Moore, C. and Dunham, P., (Eds.), Joint attention : its origins and role in development. Lawrence Erlbaum Associates.

16. Johnson-Laird, P.N. (1977) Procedural Semantics. Cognition, 5 (1977) 189-214.

17. Croft, William A. (2001). Radical Construction Grammar: Syntactic Theory in Typological Perspective. Oxford: Oxford University Press.

18. Bergen, B.K. and Chang, N.C.: Embodied Construction Grammar in Simulation- Based Language Understanding. In: Ostman, J.O. and Fried, M. (eds): Construction Grammar(s): Cognitive and Cross-Language Dimensions. John Benjamin Publ Cy., Amsterdam (2003)

19. Pollard, C. and I. Sag (1994) Head-Driven Phrase Structure Grammar. University of Chicago Press (1994)

20. Steels, L. and J. De Beule (2006) The Emergence of Hierarchy in Fluid Construction Grammar. submitted.

21. Steels, L. (2004b) The Autotelic Principle. In Fumiya, I. and Pfeifer, R. and Steels,L. and Kunyoshi, K., editor, Embodied Artificial Intelligence, Lecture Notes in AI (vol. 3139), pages 231-242, Springer Verlag. Berlin, 2004.

22. Steels, L. (2003) Language-reentrance and the 'Inner Voice'. Journal of Consciousness Studies, 10(4-5), pages 173-185.