Forrest, S., Hofmeyr, S. and Somayaji, A.: Computer Immunology , Comms of the ACM, 40(10), pp 88 96 (1997).

Kephart, J. O. and White, S. R.: Directed-graph Epidemiological Models of Computer Viruses , Proceedings of the IEEE Computer Society Symposium on Research in Security and Privacy, pp 343 359 (1991).

Kephard, J. O.: How Topology Affects Population Dynamics , in Langton, C. (Ed): Artificial Life III: Studies in the Sciences of Complexity , pp 447 463 (1994).

Erlanger, L.: 21st Century Security , Internet World Magazine http://www.internetworld.com/magazine

Albert, R., Jeong, H. and Barab si A. L.: Error and attack tolerance of complex networks , Nature, 406, pp 376 382 (2000).

Callaway, D. S., Newman, M. E. J., Strogatz, S. H. and Watts, D. J.: Network Robustness and Fragility: Percolation on Random Graphs , Phys Rev Lett, 85, pp 5468 5471 (2000).

Cohen, R., Erez, K., ben-Avraham, D. and Havlin, S.: Resilience of the Internet to random breakdowns , Phys Rev Lett, 85, pp 4626 4628 (2000).

Pastor-Satorras, R. and Vespigianni, A.: Epidemic spreading in scale-free networks , Phys Rev Lett, 86, pp 3200 3203 (2001).

Strogatz, S. H.: Exploring complex networks , Nature, 410, pp 268 276 (2001).

Faloutsos, M., Faloutsos, P. and Faloutsos, C.: On Power-Law Relationships of the Internet Topology , ACM SIGCOMM 99, Comput Commun Rev, 29, pp 251 263 (1999).

Barab si, A. L. and Albert, R.: Mean-field theory for scale-free random networks , Physica A, 272