Antonina Dattolo Felice Ferrara Carlo Tasso Supporting Personalized User Concept Spaces and Recommendations for a Publication Sharing System. 325-330 2009 UMAP http://dx.doi.org/10.1007/978-3-642-02247-0_31 conf/um/2009 db/conf/um/umap2009.html#DattoloFT09