Albert, R., H. Jeong and A-L. Barabási (2000) Error and attack tolerance of complex networks. Nature 406: 378–82.

Albert, R. and A-L. Barabási (2002) Statistical mechanics of Complex Networks. Review of Modern Physics 74: 47–97.

Axelrod, R. (1986) An evolutionary approach to Norms. American Political Science Review 80(4): 1095–111.

David, H.A. (1987) Ranking from unbalanced paired comparison data. Biometrika 74:432–36.

David, H.A. (1988) The Method of Paired Comparisons. New York: Hafner.

De Vries, H. (1998) Finding a dominance order most consistent with a linear hierarchy: a new procedure and review. Animal Behavior 55: 827–43.

Dunbar, R.I.M. (1996) Grooming Gossip, and the Evolution of Language. Harvard University Press.

Dunbar, R.I.M. (2003) The social brain: mind, language, and society in evolutionary perspective. Annual Review of Anthropology 32: 163–81.

Erdös, P. and A. Rényi (1959). On random graphs, I. Publicationes Mathematicae Debrecen 6: 290–97.

Erdös, P. and A. Rényi (1960) On the evolution of random graphs. Public Mathematical Institute of the Hungarian Academy of Sciences 5: 17–61.

Erdös, P. and A. Rényi (1961) On the evolution of random graphs. Bulletin of the International Statistics Institute 38: 343–47.

Faloutsos, M., P. Faloutsos and C. Faloutsos (1999) On power-law relationships of the internet topology. SIGCOMM 99: 251–62.

Hardin, G. (1968) The tragedy of the commons. Science 162: 1243–48.

Hoffman, P. (1998) The Man Who Loved Only Numbers: The Story of Paul Erdos and the Search for Mathematical Truth. New York: Hyperion.

Lawrence, S. and C.L. Giles (1998) Searching the World Wide Web. Science 280: 98–100.

Liljeros, F ., C.R. Edling, L.A. Nunes A, H.E. Stanley and Y. Aberg (2001) The Web of Human Sexual Contacts. Nature 411: 907–8.

Luce, R.D. and H. Raiffa (1957) Games and Decisions: Introduction and Critical Survey. New York: Dover.

May, R.M. (2001) Stability and Complexity in Model Ecosystems. Princeton Landmarks in Biology. Princeton: Princeton University Press.

Memmott, J., N.D. Martinez and J.E. Cohen (2000) Predators, parasitoids and pathogens: species richness, trophic generality and body sizes in a natural food web. Journal of Animal Ecology 69: 1–15.

Milgram, S. (1967) The small world problem. Psychology Today 2: 60–7.

Newman, M.E.J. (2000) The structure of scientific collaboration networks. Proceedings of the National Academy of Sciences 98(2): 404–9.

Newman, M.E.J. (2003) The structure and function of complex networks. Physics Preprint: arXiv:cond-mat/0303516v1.

Rapoport, A. (1966) Two Person Game Theory. New York: Dover.

Rapoport, A. (1970) N-Person Game Theory: Concepts and Applications. New York: Dover.

Reader, S.M. and K.N. Laland (2002) Social intelligence, innovation, and enhanced brain size in primates. Proceedings of the National Academy of Sciences 99(7): 4432–41.

Reader, S.M. and K.N. Laland (2004) Animal Innovation. Oxford: Oxford University Press.

Solé, R.V. and J.M. Montoya (2001) Complexity and fragility in ecological networks. Proceedings of the Royal Society Series B 268: 2039–45.

Strogatz, S.H. (2001). Exploring complex networks. Nature 410: 268–76.

Tjaden, B.C. and G. Wasson (1997) The Oracle of Bacon. Available at Virginia. http://www.cs. virginia.edu/oracle

Watts, D.J. (2003) Small Worlds: The Dynamics of Networks between Order and Randomness. Princeton: Princeton University Press.

Watts, D. J. and S. Strogatz (1998) Collective dynamics of ‘small-world’ networks. Nature 393: 440–2.

Wilson, R.J. (1994) Introduction to Graph Theory. Boston: Addison Wesley.