Agent-Oriented Software Engineering XIII: 13th International Workshop, AOSE 2012, Valencia, Spain, June 4, 2012, Revised Selected Papers

Engineering Multi-Agent Systems: First International Workshop, EMAS 2013, St. Paul, MN, USA, May 6-7, 2013, Revised Selected Papers

Multi-Agent Systems: 9th European Workshop, EUMAS 2011, Maastricht, The Netherlands, November 14-15, 2011. Revised Selected Papers