An Innovative, Open, Interoperable Citizen Engagement Cloud Platform for Smart Government and Users' Interaction. - Diego Reforgiato Recupero; Mario Castronovo; Sergio Consoli; Tarcisio Costanzo; Aldo Gangemi; Luigi Grasso; Giorgia Lodi; Gianluca Merendino; Misael Mongiovì; Valentina Presutti; Salvatore Davide Rapisarda; Salvo Rosa; et al. (CoRR, 2016)