Multiagent System Technologies Second German Conference, MATES 2004, Erfurt, Germany, September 29-30, 2004, Proceedings - Lindemann-v. Trzebiatowski, Gabriela; Lindemann-v. Trzebiatowski, Gabriela; Denzinger, Jörg; Denzinger, Jörg; Timm, Ingo J.; Timm, Ingo J.; Unland, Rainer; Unland, Rainer (Springer Berlin Heidelberg : Imprint: Springer, 2004)