11Th International Conference on Principles and Practice of Constraint Programming (Cp 2005), Date: OCT 01-05, 2005, Location: Sitges, SPAIN, Patrocinadores: Assoc Constraint Programming, Catalan Minist Univ, Res & Informat Soc, CoLogNET, Cork Constraint Computat Ctr, ILOG Inc, Cornell Univ, Intelligent Informat Syst Inst, MusicStrands Inc, Spanish Assoc Artificial Intelligence, Spanish Minist Educ & Sci, Spanish Council Sci Res, Springe, Publisher Constrainsts Journal, Swedish Inst Comp Sci, Tech Univ Catalonia, Univ Lleida