Rosa Lanzilotti Teresa Roselli An Experimental Evaluation of Logiocando, an Intelligent Tutoring Hypermedia System. 41-56 2007 17 I. J. Artificial Intelligence in Education 1 http://iospress.metapress.com/content/lx23w52r86401201/ db/journals/aiedu/aiedu17.html#LanzilottiR07