AI Approaches to the Complexity of Legal Systems : AICOL 2013 International Workshops, AICOL-IV@IVR, Belo Horizonte, Brazil, July 21-27, 2013 and AICOL-V@SINTELNET-JURIX, Bologna, Italy, December 11, 2013 : Revised Selected Papers - Casanovas, Pompeu (edición) ((Lecture Notes in Computer Science ; Lecture Notes in Artificial Intelligence))