Di Lecce, Vincenzo, Marco Calabrese, Domenico Soldo, and Antonella Giove. “Semantic Management Systems for the Material Support of E-Learning Platforms”. Journal of e-Learning and Knowledge Society 6, no. 3 (September 29, 2010). Accessed November 23, 2024. https://je-lks.org/ojs/index.php/Je-LKS_EN/article/view/445.