Lariccia, Paolo, Stefano Lariccia, and Giovanni Toffoli. “EduCommons.eu.: Piattaforme Di Scambio Per I Learning Object E Implementazione Di Un Repository Sul Modello OpenCour”. Journal of e-Learning and Knowledge Society 2, no. 3 (October 11, 2012). Accessed June 26, 2022. http://je-lks.org/ojs/index.php/Je-LKS_EN/article/view/611.