Yannis Manolopoulos Joaquim Filipe Panos Constantopoulos José Cordeiro Enterprise Information Systems, 8th International Conference, ICEIS 2006, Paphos, Cyprus, May 23-27, 2006, Revised Selected Papers ICEIS (Selected Papers) 978-3-540-77580-5 2008 Lecture Notes in Business Information Processing 3 Springer db/conf/iceis/iceis2006sp.html