1. Helbing, D., Illes, J., Farkas, P.: Simulation of Pedestrian Crowds in Normal and Evacuation Situations. Pedestrain and Evacuation Dynamics, pp. 21–58. Springer, Berlin (2001)
2. Helbing, D.: Traffic and related self-driven many-particle systems. Rev. Mod. Phys. 73, 1067–1141 (2001)
3. Galea, E.R., Blake, S.: Collection and Analysis of Human Behaviour Data Appearing in the Mass Media Relating To The Evacuation of The World Trade Centre Towers of 11 September 2001, pp. 4–6. Office of the Deputy Prime Minister, London (2004)
4. Helbing, D., Farkas, I., Vicsek, T.: Simulating dynamical features of escape panic. Nature 407, 487–490 (2000)
5. Helbing, D., Schonhof, M., Kern, D.: Volatile decision dynamics: experiments, stochastic description, intermittency control, and traffic optimization. New J. Phys. 4(33), 1–33 (2002)