Colazzo, Luigi, Andrea Molinari, and Nicola Villa. “Technological Platforms for Lifelong Learning Projects: The Dimension of Time”. Journal of e-Learning and Knowledge Society 4, no. 1 (November 16, 2009). Accessed December 12, 2024. https://www.je-lks.org/ojs/index.php/Je-LKS_EN/article/view/264.