@PROCEEDINGS{aose03, title = {Agent-oriented software engineering IV (AOSE 2003)}, year = {2004}, editor = {P. Giorgini and J. P. M{\"u}ller and J. Odell}, volume = {2935}, series = {Lecture Notes in Computer Science}, address = {Berlin}, publisher = {Springer-Verlag}, rgroup = {winf} }