Antonio Cicchetti Henry Muccini Patrizio Pelliccione Alfonso Pierantonio Towards a Framework for Distributed and Collaborative Modeling. 149-154 2009 WETICE http://dx.doi.org/10.1109/WETICE.2009.48 conf/wetice/2009 db/conf/wetice/wetice2009.html#CicchettiMPP09