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El Fallah-Seghrouchni (Eds.), Programming Multi-Agent Systems (Proc. ProMAS 2003) (LNAI, 3067) (pp. 111-130). Berlin: Springer-Verlag. Grossi, D. & Dignum, F.P.M. (2004). Abstract and Concrete Norms in Institutions. UU-CS (Ext. rep. 2004-016). Utrecht: Utrecht University: Information and Computing Sciences. Dignum, F.P.M. (2004). Advances in Agent Communication (LNCS, 2922). Heidelberg: Springer. Dignum, M.V., Dignum, F.P.M. & Meyer, J-J.Ch. (2004). An Agent-Mediated Approach to the Support of Knowledge Sharing in Organizations. UU-CS (Ext. rep. 2004-019). Utrecht: Utrecht University: Information and Computing Sciences. Dastani, M.M., Dignum, F.P.M. & Meyer, J-J.Ch. (2004). Autonomy and Agent Deliberation. In N. Nickels, M. Rovatsos & G. Weiss (Eds.), Agents and Computational Autonomy: Potential, Risks, and Solutions (LNCS, 2969) (pp. 114-127). Heidelberg: Springer-Verlag. Hulstijn, J., Dignum, F.P.M. & Dastani, M.M. (2004). Coherence in Multi-agent Interaction. 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