@BOOK{Mueller+2003aose, title = {Agent-Oriented Software Engineering IV, 4th International Workshop}, publisher = {Springer-Verlag}, year = {2003}, editor = {P.~Giorgini and J.~P.~M{\"u}ller and J.~Odell}, volume = {2935}, series = {Lecture Notes in Artificial Intelligence}, rgroup = {winf} }