Agent-Oriented Information Systems IV 8th International Bi-Conference Workshop, AOIS 2006, Hakodate, Japan, May 9, 2006 and Luxembourg, Luxembourg, June 6, 2006, Revised Selected Papers - Kolp, Manuel; Henderson-Sellers, Brian; Mouratidis, Haralambos; Garcia, Alessandro; Ghose, Aditya K.; Bresciani, Paolo (Springer Berlin Heidelberg, 2008)