20Th International Conference/Euro Mini Conference on Continuous Optimization and Knowledge-Based Technologies (Europt 2008), Date: MAY 20-23, 2008, Location: Neringa, LITHUANIA, Sponsors: European Assoc Operat Res Soc, Inst Math & Informat, Vilnius Gediminas Tech Univ, Lithuanian Operat Res Soc, EURO WG Continuous Optimizat, German OR Soc, European Chapter Metaheurist, European Chapter Combinatorial Optimizat, IBM Europe, Kaunas Univ Technol