1. Gell-Mann. The quark and the jaguar: adventures in the simple and the complex. New York: W.H. Freeman and Co.; 1994.
2. H.J. Morowitz. The emergence of everything: how the world became complex. New York: Oxford University Press; 2002.
3. D. Sornette. Critical phenomena in natural sciences: chaos, fractals, self organization, and disorder: concepts and tools. Berlin; New York: Springer; 2000.
4. A.-L. Barabasi. Linked: the new science of networks. Cambridge, Mass.: Perseus Pub.; 2002.
5. A.-L. Barabasi, R. Albert. Statistical mechanics of complex networks. Reviews of Modern Physics. 2002 2002;74(l):47–97