Agent-Based Technologies and Applications for Enterprise Interoperability : International Workshops ATOP 2009, Budapest, Hungary, May 12, 2009, and ATOP 2010, Toronto, ON, Canada, May 10, 2010 : Revised Selected Papers - Fischer, Klaus (edición); Müller, Jörg P. (edición); Levy, Renato (edición) ((Lecture Notes in Business Information Processing ;)