AI approaches to the complexity of legal systems : complex systems, the semantic web, ontologies, argumentation, and dialogue, International Workshops AICOL-I/IVR-XXIV Beijing, China, September 19, 2009 and AICOL-II/JURIX 2009, Rotterdam, The Netherlands, December 16, 2009 : revised selected papers. - Casanovas Romeu, Pompeu; Pagallo, Ugo; Sarto, Giovanni; Ajani, Gianmaria (Lecture notes in artificial intelligence. Lecture notes in computer science., 2010)