Batali, J. (1998) Computational Simulations of the Emergence of Grammar. pp. 405-426 in: Hurford, et.al. (1998)

Briscoe, T. (1999) Grammatical Acquisition and Linguistic Selection. In: Briscoe, T. (ed.) (1999) Linguistic evolution through language acquisition: formal and computational models. Cambridge Univ. Press, Cambridge.

Chomsky, N. (1981) Lectures on governmentand binding. Foris Publications, Dordrecht.

Dik, S. (1997) The Theory of Functional Grammar. Mouton De Gruyter. Berlin.

Greenberg, J. (1966) Language universals. Mouton, Den Haag.

Heine, B., U. Claudi and F. Huennemeyer (1991) Grammaticalisation. A conceptual framework. The University of Chicago Press, Chicago.

Hopper, P. (1987) Emergent Grammar. Berkeley Linguistic Society 13, 139-157.

Hurford, J, C. Knight and M. Studdert-Kennedy (eds.) (1999) Approaches to the Evolution of Human Language. Cambridge Univ. Press. Cambridge.

Kirby, S. (1999) Function, Selection and Innateness: the Emergence of Language Universals. Oxford University Press, Oxford.

Langacker, R. (1987) Foundations of Cognitive Grammar. Stanford University Press, Stanford Ca.

Lightfoot, D. (1991) How to set parameters: arguments from language change. The MIT Press, Cambridge Ma.

Lindblom, B., P. MacNeilage, and M. Studdert-Kennedy (1984) Selforganizing processes and the explanation of phonological universals. In: Butterworth, G., B. Comrie and O. Dahl (eds.) (1984) Explanations for Language Universals. Walter de Gruyter, Berlin. pp. 181203.

Rice, M. (1996) Toward a Genetics of Language. Lawrence Erlbaum Ass. New Haven.

Steels, L. (1997) The synthetic modeling of language origins. Evolution of Communication, 1(1):1-35.

Steels, L. and Kaplan, F. (1998) Situated Grounded Word Semantics. In Proceedings of IJCAI-99, Stockholm. Morgan Kauffman Publishing, Los Angeles. p. 862-867.

Steels, L. (1998) The Origins of Syntax in visually grounded robotic agents. Artificial Intelligence 103, 1-24.

Steels, L. and Kaplan, F. (1999) In Proceedings of COLING-ACL, Montreal, August 1998, p. 1243-1249.

Steels, L. and P. Vogt (1997) Grounding Adaptive Language Games in Robotic Agents. In Harvey, I. et.al. (eds.) Proceedings of ECAL 97, Brighton UK, July 1997. The MIT Press, Cambridge Ma.

Van Valin, R. and R. LaPolla. (1997) Syntax. Structure, meaning and function. Cambridge University Press, Cambridge.