@articleLettmann_Baumann_Eberling_Kemmerich_2011, title=Modeling Agents and Agent Systems, DOI=10.1007/978-3-642-24016-4_9, journal=Transactions on Computational Collective Intelligence V, publisher=Springer Berlin Heidelberg, author=Lettmann, Theodor and Baumann, Michael and Eberling, Markus and Kemmerich, Thomas, year=2011, pages=157–181