MANGIONE, GIUSEPPINA RITA, FRANCESCO ORCIUOLI, PIERLUIGI RITROVATO, and SAVERIO SALERNO. 2013. “SEMANTIC WEB FOR SUPPORTING PERSONAL WORK AND LEARNING ENVIRONMENT CREATION”. Journal of Web Engineering 12 (1-2):439-56. https://journals.riverpublishers.com/index.php/JWE/article/view/4195.