@article {106, title = {An Ontology-Based Query Manager: Usability Evaluation}, year = {2008}, url = {http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.73.7419}, author = {Catarci,Tiziana and Di Mascio,Tania and Dongilli,Paolo and Franconi,Enrico and Tessaris,Sergio} }