Cangelosi, A., & Parisi, D. (1998) The emergence of a `language' in an evolving population of neural networks. Connection Science, 10: 83-97.

Hauser, M. D. (1996) The evolution of communication, Cambridge MA: MIT Press.

Kirby, S. (2002). Natural Language from Artificial Life. Artificial Life, 8(2):185--215.

Langmore, N. E. (1998) Functions of duets and solo songs of female birds, Trends in Ecology and Evolution,13: 136-140.

Marocco, D., Cangelosi, A., & Nolfi, S. (2003), The emergence of communication in evolutionary robots. Philosophical Transactions of the Royal Society London A, 361: 2397-2421.

Nolfi, S. (in press). Emergence of Communication in Embodied Agents: CoAdapting Communicative and Non-Communicative Behaviours. Connection Science.

Nolfi, S., & Floreano, D. (2000). Evolutionary Robotics: The Biology, Intelligence, and Technology of Self-Organizing Machines. Cambridge, MA: MIT Press/Bradford Books.

Quinn, M., Smith, L., Mayley, G., & Husbands, P. (2003) Evolving controllers for a homogeneous system of physical robots: Structured cooperation with minimal sensors. Philosophical Transactions of the Royal Society of London, Series A: Mathematical, Physical and Engineering Sciences 361:2321-2344.

Slater, P. J. B. (1997) Singing in the rain forest: the duets of bay wrens, Trends in Ecology and Evolution, 12: 207-208.

Steels, L. (1999). The Talking Heads Experiment, Antwerpen, Laboratorium. Limited Pre-edition.

Steels, L. (2003) Evolving grounded communication for robots. Trends in Cognitive Sci ence. 7(7): 308-312.

Steels, L., & Vogt, P. (1997) Grounding adaptive language games in robotic agents. In: P. Husband & I. Harvey (Eds.), Proceedings of the 4th European Conference on Artificial Life, p. 474-482. Cambridge MA: MIT Press.

Wagner, K., Reggi a, J.A., Uriagereka J., & Wilkinson, G.S. (2003). Progress in the simulation of emergent communication and language. Adaptive Behavior, 11(1):37-69.