Cataldo Musto Fedelucio Narducci Pasquale Lops Marco Degemmis Giovanni Semeraro Content-Based Personalization Services Integrating Folksonomies. 217-228 2009 EC-Web http://dx.doi.org/10.1007/978-3-642-03964-5_21 conf/ecweb/2009 db/conf/ecweb/ecweb2009.html#MustoNLDS09