Elena Mugellini Omar Abou Khaled Maria Chiara Pettenati Pierre Kuonen eGovSM Metadata Model: Towards a Flexible, Interoperable and Scalable eGovernment Service Marketplace. 618-621 2005 conf/eee/2005 EEE http://doi.ieeecomputersociety.org/10.1109/EEE.2005.67 db/conf/eee/eee2005.html#MugelliniKPK05