20Th European Conference on Modelling and Simulation, Date: MAY 28-31, 2006, Location: Bonn, GERMANY, Sponsors: European Council Modeling & Simulat, Soc Modeling & Simulat Int, IEEE, ASIM, Federat European Simulat Soc, Liophant Simulat, Polish Soc Comp Simulat, Latvian Simulat Soc, Latvian Acad Sci, Latvian Council Sci, Host: Bonn Rhein Sige Univ Appl Sci