Sligte, Henk, and Rob Koper. “Empowering Learners for Lifelong Competence Development: Pedagogical, Organizational and Technological Issues”. International Journal of Emerging Technologies in Learning (iJET) 3, no. s1 (July 5, 2008): pp. 4–6. Accessed April 27, 2026. https://online-journals.org/index.php/i-jet/article/view/569.