Nicola Capuano Matteo Gaeta Sergio Miranda Francesco Orciuoli Pierluigi Ritrovato LIA: An Intelligent Advisor for e-Learning. 187-196 2008 WSKS (1) http://dx.doi.org/10.1007/978-3-540-87781-3_21 conf/wsks/2008 db/conf/wsks/wsks2008.html#CapuanoGMOR08